The amazing Bulova Accutron watch filmed in microscopic slow motion

[@taofledermaus]

er... 20th century, but who notices our blatant errors? lol

[@johnfriedmann2413]

I noticed. But you corrected quickly. ;-)

[@738polarbear]

Ignore critics ,it seems that nobody can even make a slip of the tongue without someone jumping all over them . that monor error does not detract from the marvel of the video.

[@TMOR_]

my eye twitched when you said that lol

[@joemo1033]

I erased all my watch puns because by the time I got to the 3rd one I threw up in my mouth from the cringe. This could be a great series of videos. "Amazing engineering" or something like that. Lots of interest for these types of videos. Do it Jeff....do it.

[@lasarith2]

TAOFLEDERMAUS the magnifying Glass turns a telephoto lens into a Macro lens , I’ve done it myself .

[@slippymitc]

My grandfather was given a gold Bulova Acutron by his employer, General Motors, on the 25th anniversary of his employment. That was in 1973. He wore the watch for over 30 years, replacing the battery whenever it stopped keeping time, until one day, 5 years ago, a jeweler broke it... Papa kept the watch in a drawer as a keepsake, despite it not being functional. My Papa is no longer with me, he passed away in 2016. Today I picked up his watch from my watchmaker, who happened, out of sheer luck, to be one of the last graduates of the Bulova school of watchmaking. It's like new. The watch isn't worth much money, a few hundred dollars at best, and it's not especially fashionable. It is a horological oddity, this tuning fork movement, a relic of the past... not a mechanical swiss masterpiece, and it isn't going up in value... but it was His watch... and now here it is, humming away with that faint tuningfork buzz, on my wrist... It is my most cherished possession, and my all-time favorite watch.

[@maxie4937]

I imagine that one of the most worrying thing for owning an Accutron is that if somehow the escapement broke, there's no place to buy the parts, and no watchmaker trained to repair it.

[@HobkinBoi]

I'd be pissed if some watchmaker ruined it.. But it's amazing for how long it worked, that mechanism really was built to last for such a length of time.

[@H0kram]

@@maxie4937 Gotta find " that watchmaker " who has a passion specifically for these and has quite a stock of parts. I happen to know one in my city, he is into the electronic/electrical watches from the 60s and 70s in general. It's the kind of people you want to know even before buying a watch like that.

[@wes11bravo]

Amazing story! Oddly similar to mine - I have a 1974 Model 22505 Accutron that my grandfather got when he retired from Babcock and Wilcox. I ended up with it when he passed in the early 90s and managed to hang onto it. After researching the Accutron, I'm even more glad I have it. Hopefully I can find someone to get it working again for me.

[@slippymitc]

@@wes11bravo, Orlando Watch Company in Winter Park Florida can work on it.

[@EdwinSarkissian]

What's more amazing is you knowing all that info on this watch . How on earth they made that little tiny lever . That's crazy .

[@TheTeehee11111]

Edwin Sarkissian Probably lasers

[@EdwinSarkissian]

TheTeehee11111 not sure if they had that technology then

[@TheLordReverend]

Edwin Sarkissian the aliens did

[@JoshuaNicoll]

well, currently the cutting edge of miniaturisation is in IC's, like CPU's, and given this has a transistor in it, I bet the method of making the gears was similar in principle, even now the most we can mass manufacture is between 12nm and 10nm, with 16nm and 14nm being the most popular.

[@Δδιροωγ]

Finaly, the Giorgio Tsoukalos's fake account. Found it!

[@NimbusFilmsOfficial]

That micro toothed gear is unbelievable

[@taofledermaus]

The only clue we have is the gears were cut in stacks- many were cut at the same time.

[@RobertBirtchImperfectStone]

Whatever metal they use to make it, they probably machined a rod of it, then cut it razor thin.

[@Teth47]

Hmm, sounds like broaching maybe. A stack would respond really well to that, and machining such small features consistently on a stack with and rotary cutter would be basically impossible even today. My money's on some whizbang super exotic alloy broach made to insane tolerances. Cut a thousand of them at once.

[@MrVolodus]

I can think of some ways how to do that, but that precise work drives me crazy even thinking about it :D

[@cuongle7990]

Probably used lasers to cut the teeth.

[@cat637d]

The index wheels were stacked and hobbed, the hobbing machine was very large and was similar to a 1 to N reducing arm such as was used in a New Hermes engraving machine, the information is known and is in the public domain and has been for many years although the actual device is rumored to have been destroyed at the order of Bulova some time after the end of production. Almost a predecessor to the DaVinci surgical robot without the computer and servo system. There is no secret as to how the pawl jewels were manufactured! Also the transistors were hand assembled Germanium point contact devices made by ATT or P.R. Mallory in the first model 214 as I recall. There are something like a dozen of these movements in residence on the moon. Great work with the high speed and the magnification! Hope the info is useful.

[@rustyosgood5667]

Hi, Thanks for sharing this information. I know it may be allot to ask but if you have any reference sources, I would love to learn more. I think this history is worthy of documentation and summary. I might undertake this type of activity in earnest when I retire (from Engineering) in a few years.

[@robmckennie4203]

It's weird how the greatest technical achievement of the 21st century happened during the 20th century

[@robmckennie4203]

***** makes sense

[@WaschyNumber1]

titaniumlibra nano robots are existing, they can heal almost everything and do everything ;-)

[@dwimrel]

WaschyNumber1 not yet but we are close to that break through. We do have nano scale medication that is mechanically inert.

[@WaschyNumber1]

Joseph Ferguson the break true is not in before use it is beyond that longer that you believe it.

[@phillhuddleston9445]

Ain't you ever herd of a time musheen.

[@PacoOtis]

Dude! Thanks for the educational video! We definitely owe you a beer. My first Accutron was in 1962 but I lost it during my Vietnam tour. Recently obtained one via eBay and it is in excellent condition. Best of luck!

[@AdamosDad]

I bought one of these in the late 60's because my job required precise timing on a electronic military device. It was accurate enough that I really did not need to listen to every time signal that was transmitted from the bureau of standards time clock. Thanks for giving us fans of this watch an inside look. By the way it cost me about a third of a months pay to buy it.

[@fakenews7266]

I collect Accutrons and have 8 that work and 6 that stopped working because people put modern batteries in them all modern watches run on 1.5 volts or 3 volts but the Accutron runs on 1.35 volts so a modern watch battery will fry it , when I was younger and got my first "Space View" my hearing was much better and it would drive me nuts with the ringing ( squeal ) it would make I could find it anyplace in the house just from the noise it would make ( they all have a tuning fork inside ) , not my hearing is shot and they don't tick but also they stopped bothering me . I love the sweep of the second hand no one second jerk but a smooth movement . They are one awesome watch , I collect rare old watches and Accutrons are at the top of my favorite watches ( they also made a desk clock ) . Great video , Thank you . 2 thumbs up

[@davidisraeldiaz5283]

I used to fix this tipe of watches and went to the North Seattle University to study how to fix all the movements . I still have one like the 218 and still working since 1977.

[@carlubambi5541]

Loved that watch ,I have my father's spaceview ,it's all worn out and I keep it because it was my dad's .one day I will restore it if I can afford to

[@eccentrichydroponics6386]

In my last life, I was a field service technician. I used to have an account on the east coast that was a high end watch maker with a vault just for the jewels added to the watches. In one room were long benches and skilled tradesmen assembling the watches by hand. using micro sized files and tweezers.I would just stand there for what felt like hours watching them build. Such talent. But I didn't see any aliens. They were probably just the engineers.

[@johnangeleri7336]

awesome video! My dad had this watch and I used to listen to it as a kid.

[@peterhoare3219]

Huuummmmmmmmmmmmmmmmm

[@oris9946]

This was amazing. Both the presentation and the explanation. I had no idea this type of technology even existed. Thank you!

[@taofledermaus]

thank you!

[@stayblazin4408]

hats off to the guy that made this.. ive always loved small things.. the smaller and more working parts the better.. the swiss mini gun is amazing i want one so bad but theyre banned in the u.s. for being so small i guess.. but it was made by a watch maker. i should try something like that.

[@evangelius]

i am watchmaker, i was working at official seiko service, few wears ago...we reapair al kind of watches, quartz, mechanical, digital.... but this is mindblow! also for me, one of craziest watches was Quartz tissot with som kind of electro mechanical compass made inside stanlies steel shell. That watch is made for mr. mrs. smith mowie some years ago.

[@taofledermaus]

I prefer mechanical watches over battery powered watches. (I hate changing batteries) I collect Benrus jump hour watches from the 50's.

[@Stigstigster]

I've had a Speedmaster Professional on my wrist for a dozen years now, my only Swiss watch. I started out with Japanese mechanicals because they are often affordable and I particularly like Seiko mechanical dive watches. Awesome video, thank you.

[@scienceaddict77]

TAOFLEDERMAUS I've been wanting to get my hands on an old mechanical pocket watch, I love how they work.

[@MrFragsinatra]

It's a Tissot T-Touch. It wasn't made for the movie. It's called product placement - advertisement. In Tomb Raider, another movie with Angelina Jolie, she wore the same watch but in a different color scheme. It's a very precise watch, called a chronometer. Mine is only about 3s off in a year.

[@G56AG]

My Dad got one of those in the late 60's as I recall, good watch, the humming sound was very unique. He wore it til he died in 1976.

[@elesjuan]

Not at all what I expected when I clicked on it. Thanks for taking the time to make this! I've seen a few things about this watch before but never a slow motion video of it in action. Thanks man!!

[@taofledermaus]

I've seen a few good videos just showing the index wheel zipping along, filmed using a microscope.

[@cs_yt]

Thanks for the nice reminder. This was my dad's watch (I still have it) and I grew up intrigued by the noise, but it drifted out of my mind over the 37 years since he passed away, until this morning.

[@thesnowedone]

Such a curious sound it makes and what a nifty mechanism!

[@taofledermaus]

You can feel the vibration when you hold the watch. It isn't TOO loud.

[@richiedeffew3188]

TAOFLEDERMAUS shoot bluetack out of the 12 gauge

[@n2n8sda]

I'm wearing one right now. As you said you really don't notice the sound, but if you take the watch off at night and put it say on a bedside table you can hear it vibrating the table when the room is quiet.

[@giin97]

TAOFLEDERMAUS so that whine isn't noticeable off the video? That's good. Found it really annoying.

[@ianedmonds9191]

My Dad has one of these. I'm so impressed with it. The cool thing is the noise it makes. It doesn't tick. It hums. SO cool. Luv and Peace.

[@kingginger3335]

That was a really cool video! You should make more videos like this one where you just talk about random cool things that have intricate parts! Favorite channel on KZbin for sure!

[@MGBTechSupport]

Thank you for all the work on the amazing videography and images. It describes the design and function superbly. Human hair overlay: nice touch!

[@pirobot668beta]

Once had an engineer tell me that the indexing jewel is what cut the teeth. The wheel is heated to a temp where it starts to get soft. The indexing jewel pushes against the wheel, making a toothy impression. Bump the index jewel again, another tooth, next thing you know, teeth all around. Micro-scale forging. Then again, he had no idea how the jewels were made/affixed. Fun tech. BTW,

[@sarahdeshay1394]

Wow, thanks for your effort. I have one of these in fine working condition and the fact that it has lasted over 50 years is just astonishing. I had a rough idea of how it worked but putting a hair in the picture made it very clear just how tiny those gear teeth are and how fast it is moving. Thanks again.

[@xzevious69]

Very cool! You should start a series

[@KnolltopFarms]

Don't even get him started, the Patreon demands would be astronomical for even a "low-end" Rolex, LOL!

[@andreasnilsson2304]

+shotgunfetus Agree!!

[@boudica26ify]

I second that! (No pun intended) More! More!

[@Colt45s1911a1]

As a diagnostic tech and a mechanical engineer at heart, this is the coolest thing I've ever seen on KZbin, maybe ever. Thanks for doing this video.

[@harmlesscreationsofthegree1248]

I missed this the first time around. Incredible. Awesome vid

[@taofledermaus]

thanks!

[@RobRuckus65]

That is a really cool watch it amazes me how someone came up with the idea for it and got it to work so well with such tiny parts... watch makers are different breed...

[@FrankBenlin]

When I went to horology (watch and clock making) school back in the 70's, one of these was the last piece I work on before graduating. I remember the teacher telling me not to touch the wheel at all with tweezers, handle by the arbor only. He also got a good deal on some, which one of them I had to get after seeing them work. Still have it.

[@AC9DJ]

Cool video! But how is it as a slug?

[@drongojonkins8945]

More accurate than an iwatch

[@arbitrage2141]

Bullova accutron slug - MOST ACCURATE SLUG EVER TESTED TO DATE!!

[@asifkaka5052]

James Anderson lol

[@DanGoodShotHD]

You stuff it in a shot gun! Ha!

[@OlaJustin]

James Anderson Hahaha!

[@Pip2andahalf]

Thank you!!! I just learned about the Accutron, and this video is *EXACTLY* what I wanted to see!! Cheers! Great work with the slo-mo microscope camera! The footage was great! What truly incredible technology! Super cool.

[@taofledermaus]

thank you for the nice words

[@Gyppor]

Wow Jeff, what a marvel of engineering. I'm always amazed at how advanced some technologies were even as far back as the sixties. I don't think the average person realizes (and me included) how incredible human innovation in the modern age really is.

[@sompret]

It's kind of a recurring pattern for humans living in an age beyond prior ages. Even today, we keep finding more and more evidence that people in ancient times were much smarter than we give them credit for. I mean, the Ancient Greeks were crazy-good plumbers, given how much less resources they had compared to us.

[@lucignolo8333]

Joshua Madoc also romans built the colosseum and other splendid structures that are intact to this very day, roughly 2000 years later, i bet our modern skyscrapers won't last that much

[@taofledermaus]

That is what amazes me.

[@zwz.zdenek]

The Colosseum is all but intact. Have you seen it? There are no 2000 y/o structures not needing repairs.

[@pirobot668beta]

We made it to the moon using 8-bit microprocessors; sextant, slide-rule and log-tables as backup.

[@samd.5203]

Amazing video, very informative. It shocking how under appreciated this technology and craftsmanship is these days. Watch collectors are so snobby about any watch that is not a mechanical watch when the simple quartz watch and the accutron watch technology was just so amazing.

[@taofledermaus]

thanks Sam!

[@r1w3d]

Love your vids but this even though different was beautiful in its own way. I love precision and mechanics and anything autonomous. thanks for this Jeff🎩

[@taofledermaus]

Thanks!

[@notadamcrosby]

love this video so much. new lover of vintage accutrons!

[@taofledermaus]

Glad you enjoyed!

[@effervescentrelief]

Not saying it was aliens... BUT IT WAS ALIENS!!!

[@1yum]

alien engineering from a human planet

[@rapiddave9268]

Undocumented immigrants

[@nRADRUS]

Borat O'Bomba, non-muslim immigrant from Bohemia (Czech Republic)

[@aprilyear2011]

revtune probably though lol

[@boudica26ify]

Thanks for this amazing share. My Dad used to repair watches. Good memories surfaced watching this. Amazing design and mechanics on this baby.

[@OGsDangerShow]

"Pawl Finger". That's the name of my new Simon & Garfunkel tribute string quartet.

[@taofledermaus]

haha... I wish it would stop raining for a couple days.

[@mrclucker1969]

what a fascinating feat of engineering - thank you for showing us this in slow motion so we could see the mechanism in action.

[@JesseAndMike]

That's awesome! :D Really cool video! Liked!

[@taofledermaus]

thank you very much Jesse and Mike!

[@Jack44M]

When the 214 and 218 movement was introduced, Bulova held regional schools to teach watchmakers how to repair them. The excellent microscope, as part of the tool kit, made all the difference. Without it, it's impossible to properly adjust the index and pawl jewels.

[@JacobCHolden]

man that was sick as, what a piece of engineering

[@taofledermaus]

thanks Jacob!

[@MrMeep1999]

thank you so much for appreciating this work of art. As an aspiring watchmaker it always makes me extremely happy to see other people interested in such amazing movements such as this one. This is one of my dream watches.

[@ILEFTCAPS0N]

Man, RIP headphone users. I thought my tinnitus was getting worse. Fascinating watch though.

[@dietznutz1]

Tinnitus is fun eh?

[@ILEFTCAPS0N]

@@dietznutz1 So fun. Sleeping with the ceiling fan on low helps.

[@dietznutz1]

@@ILEFTCAPS0N fair it sometimes becomes white noise at night somehow otherwise I just deal with it

[@ILEFTCAPS0N]

@@dietznutz1 try putting the palms of your hands over your ears and using your fingers to strum on the back of your head, about 50 times will make it stop for an hour or two, but your mileage may vary You might have to try Googling "strumming on your head for tinnitus" to understand it better.

[@JerryP92877]

That is the most incredible things I've seen, and just to think it's from the 60's. Thanx for posting it.

[@TYGR2115]

This is an engineer's wet dream

[@zacktoor1591]

I... didn't expect to have my mind blown by an old watch... but it's definitely a mind blow.

[@chadjordan9382]

I have a Bulova precisionist. I believe it is the most accurate now.

[@7magqcc]

Chad Jordan I have one too. Love it and it has rekindled my respect for Bulova again.

[@malcytull]

The engineering in that is stunning, thank you for posting.

[@AnarchistAaron]

I love your enthusiasm but a trillion is a big number! Even if this watch lasted 40 years non stop it would only vibrate the mechanism 454,118,400,000 (Four hundred fifty four billion, One hundred eighteen million, Four hundred thousand) times. Still incredibly impressive though. 360*60*60*24*365*40

[@anpefleyable]

Definitely not possible to run that long. Mainly because the battery runs out so quickly. I have my grandfathers and it only last 2-3 months on a fresh battery lol.

[@rossmennie4903]

AnarchistAaron Who taught you math???

[@AnarchistAaron]

Ross Mennie 360*60*60*24*365*40= 454,118,400,000 correct me if I’m wrong

[@jakeagusta]

anpefleyable My batteries 🔋 last over a year. This is consistent across 4 of my Accutrons 👍🏻

[@jakeagusta]

AnarchistAaron I have a new one which hasn’t Vibrated once as a battery has never been fitted 😌

[@chrisjordan7592]

that was AMAZING! I like adding loops to camera for macro views. AMAZING engineering involved in the watch is baffling. I'M de baffled. GREAT job, thanks guys.

[@thedude7726]

cool watch. bit if it makes that sound I couldent stand to be in the same room as it.

[@taofledermaus]

It isn't very loud, especially when the case is closed.

[@Fred_Bender]

I have 3 of these watches .They all have the open face design.My father( who worked at the Kennedy Space Center at the time) bought one of these in the early 1960's .I still have it.

[@Nairod2]

u_u for a second i thought that marvelous piece of engineering was going to get shoot.

[@espalorp3286]

but what if slug is not shoot? What if watch will be kill?

[@Nairod2]

Proteus o_o do you engrish?

[@espalorp3286]

si

[@skye1355]

your engrish is not without

[@jewbidawitz]

Thank you for this video, it got me curious and I pulled out my old Bulova! Looked it up on eBay and it's $195! That's some good money I could use

[@MoreAmerican]

Who were the 5 people who disliked, swatch people?

[@EmilioSantosS]

MoreAmerican probably people who use their phone to tell the time.

[@TheMrDemonized]

they are apple watch users

[@utrak]

"they are apple watch users" and judging from the number of dislikes, must be ALL the apple watch users

[@taofledermaus]

I think it makes people feel important.

[@MoreAmerican]

Emilio Santos S. hey! I resemble that remark! 😎

[@MrHeuristics]

This is hands down the best action footage of the pawl and index finger that I've ever seen. It really drives home the marvel and ingenuity of accutron movements. No wonder all the super spies were issued these. If these little accutrons were slightly more robust, they would have passed NASA's wristwatch test and there would be no Omega Moonwatch... just accutrons imbedded within spaceship hardware and on the wrists of astronauts- a complete (and unbelievably smooth) sweep, so to speak. Where a watch like the Hamilton Pulsar P1 pushed electric watches into the digital age, there is no comparison to the marvel of Bolova's achievement. Thank you for this video.

[@bluebailey4884]

Hmmm...Maybe we really did go to the moon!

[@vanillaexplosion99]

Yep just like the great pyramids were built by man.

[@ColonelK0rn1]

I watched this video this morning, and as I was drinking my cup of coffee, I realized that I wasn't quite awake enough to take in all the amazing technical detail that went into the manufacturing and engineering of this watch. The slow motion video of the indexing mechanism, compared to the human hair was truly amazing to see. I have seen some other videos of watches being assembled, and always marvel at the precision of engineering. Thanks for bringing us something unique to "watch". See what I did there?

[@reecevince2166]

How can something be boring and fascinating at the same time

[@PaulK390S90V]

that's insane. you would never think that much is going on in just a watch. trillions of movements! cray cray

[@Mace2.0]

Nanomachines, son. I'm joking.

[@SK-xg9rs]

Accutron’s are my big big love... have my Bulova Accutron Astronaut GMT on my wrist at the moment, what a beautiful humming beast 🔥

[@Fudmottin]

Way cool. I wonder if such a watch could be made today at an affordable price. The quartz oscillator all but killed the fine art of watchmaking. I'm only aware of a couple Swiss companies that use traditional methods.

[@lucignolo8333]

Fudmottin yeah, and they costs like a cool car

[@taofledermaus]

It could be, but there are cheaper and simpler ways of doing the same thing. I don't think many people would want to spend $1000 on a watch if they can buy a watch for $50 or so.

[@Fudmottin]

Good point. I guess a tuning fork just doesn't hold the charm of a rotating pendulum like Swiss movements use.

[@benjaminbarrera214]

Bulova made some more tuning fork watches in 2010 for the 50th anniversary of the Accutron's release. It was a limited edition of 1000 and they were priced at $5,200 each.

[@Erdie5]

Absolutely love this design. Just happened to read about it a week ago. Very impressive craftsmanship.

[@sashayakubov6924]

One of the most impressive watch related videos I have ever seen. Why doesn't it have millions of views????

[@Kevins-Philippine-Retirement]

Excellent video and description. I remember an old guy who was a friend of my family had one about 1970. I was fascinated by that hum and the smooth second hand. Now I really want one for my collection.

[@friendlypiranha774]

Truly amazing, especially since those tiny index wheels were made in the 1960's.

[@normanthehobbiest]

What an incredible and crazy cool watch. It's insane thinking about how all those mechanisms are in something so small. Thank you so much for sharing!

[@jblack5728]

That watch is so amazing. I want one now.

[@Stevew443]

I own a Bulova Accutron from the mid 70s and that watch still keeps perfect time. I do not wear it much anymore since it tends to eat batteries, but it still functions as well as the day it was made. About once a year or so I will have a new battery installed and wear it until the battery dies.

[@citizen1114]

That was amazing. These watches came out when I was a kid. I had no idea that they had the ability to do that kind of miniaturization then. Great video. guys. Almost better than the shooting vids.

[@R0b0tkilla]

I am pretty sure this is the best youtube channel. also, chronos cameras are the best thing to ever happen to youtube.

[@taofledermaus]

thank you! I'm sure we will start seeing more channels using the Chronos around May when the first batches are going to be shipped.

[@PowerfullPC]

This is an amazing piece of engineering. I love seeing how mechanical or electro-mechanical devices work. Before modern technology that gave us quartz clocks and transistors (for other devices), people had to find novel and new physical ways to do things. My pocket-watch is mechanical because I just love seeing the motion (it has an open face). They're also so robust! I wouldn't be surprised if this watch would last a long time while running constantly. When something is more difficult, complex, and expensive to make, you sure as heck wanted it to last. The ingenuity needed is just superb. It's really neat seeing this gem of vintage timekeeping.

[@taofledermaus]

There aren't too many things made today that will last more than a few years. Even stuff with no moving parts will break the day after the warranty lapses. lol

[@trevorchouinard7474]

I currently attend school to become a machinist, I feel like this could be a lesson to everyone how important tolerances are.

[@CodeBleu724]

I am a machinist and I mostly work with .005 inch tolerances. The average sheet of 8x11" printer paper is .003 thickness. The level of precision in that gear is insane.

[@trevorchouinard7474]

I've long since graduated school and started a career as a machinist running a 4 axis horizontal mill. Given the wire in the coils is 5 tenths in diameter some of these parts are even more impressive. After rewatching this video over 3 years later I have an even greater respect for the craftsmanship.

[@TheZombieSaints]

WOW! That's phenomenal that they could manufacture something of that much precision in the '60s. Outstanding! Well done modding the Chronos too :)

[@nukemanmd]

I owned one back in the 60s. It made a very soft humming sound. I still have it, although I stopped wearing it long ago. While going through a closet, I found it and took it to a jeweler for inspection. Of course, the battery was dead. He put a new battery in and the watch came to life. It works as well as when it was new. Compare that to my father's Rolex of equal vintage. It wasn't working so we sent it to Rolex in NY. We got a letter saying it was unrepairable due to the unavailability of parts.

[@tonymunn]

This is the best KZbin video I've watched all week. I love precision.

[@ajwilson313]

Absolutely mindblowing. Truly stunning...thank you for sharing!

[@Tigermoto]

Amazing video! Thanks Jeff. This Chronos has really given you the ability to do things never before possible. But only you and your inventiveness could come up with this. Thank you.

[@StasRyadinsky]

I knew most of the things about how this mechanism works but never saw it in slow motion and a close up of it. Really nice video

[@DrNaz]

More like these! Listening to zero-project while watching this was great. Great vid as always Jeff. Love your channel.

[@gscapinelli9214]

Thanks for bumping this into our feeds again. Really enjoyed it.

[@taofledermaus]

thanks!

[@stopthephilosophicalzombie9017]

Imagine my surprise when my favorite ballistics channel has the explanation of the Bulova Accutron I was looking for today. Thanks for a great video! I wish I could find more information on the development and manufacture of this brilliant device. I guess they have become a footnote in horological history after the advent of quartz movements.

[@knightnicholasd]

Hey Jeff, I'm a mechanical engineering student, and this was one of the coolest and most interesting videos ON ANY CHANNEL that I have ever seen. Awesome! I hope to see more stuff like this. Also, The shotgun stuff is still cool.

[@AdamStuart1]

Watching this in 2024 wearing my 1965 Accutron, what a wonderful video, makes me like the watch even more.

[@taofledermaus]

thanks Adam

[@tommallinson619]

not just the shotguns I come here for Geoff, this was a beautiful look at some amazing mechanical engineering. well done

[@apeanutbutterwolf6529]

I have a feeling that the gear was built by the tuning fork itself then casted there in after. The watch being built around the gear, built around the transistors all while having extremely high quality resistors. I'd say this watch is the definition of high quality. Amazing

[@benjaminbarrera214]

At least one of the resistors is carbon composition, the cheapest you could buy. They tend to absorb water and change value over time. Metal film resistors were around back then so I don't know why those weren't used instead.

[@JeremyMcMahan]

Wow. Amazing design and craftsmanship!

[@turbo.yota.]

all I can say is wow...that's absolutely incredible

[@flyod26]

Wow, this was really neat, thanks for sharing! This was very interesting to me, I never thought I would like to learn how any watch worked, this is an amazing piece of machinery. Thanks again!

[@pnw_machinist]

Amazing craftsmanship. Thanks for sharing Jeff!

[@HamMax444]

By far one of his best videos ever!!

[@THEfamouspolka]

All your content is AMAZING. Whenever a Taofledermaus notification pops up, I find a way to watch it! Thank you for all the great Info!

[@taofledermaus]

thank you!

[@Goodwithwood69]

Hope you make more videos like this one! Short, too the point,interesting=KZbin gold!

[@teseglet]

Great 1950's-style documentary voice, complete with slight chuckles to liven up a relatively dry subject.

[@G56AG]

My Dad had one of those, he bought it from a friend who had a jewelry store in the early 70's, we still have it in the family.

[@taofledermaus]

This was my dad's. When he died I found it in some of his stuff.

[@jasondoe2596]

Fascinating mechanism, and a Chronos put to really good use! This could very well be my favorite video of yours :D Thanks!

[@tonybletas930]

Hell I was expecting that Bulova to be somehow stuffed into a 12g hull and blown down range at 1500 fps! Was I surprised! In all seriousness one of the best clips I've yet seen on KZbin on an astounding piece of engineering that's got me fucked in awe as to how the hell it was built!