Replacing the crystal on a Seiko 7549-7010 300m Tuna

I needed to change the crystal in my Seiko 7549-7010, so here's how I do it.
Since the crystal needed to be swapped, I did a complete case rebuild (minus crown since that's good) start to finish. Things to look for, how I use silicon grease on cases, tips, all that.
PSA: This video contains sub-optimal levels of editing, namely, none. No script, no planning, no real editing, nothing. Same for the sound - I forgot my microphone so if you can hear anything count that as a win. Even if that "anything" is tuneless humming. I did pump up the volume though. YMMV if you choose to blow part of your life on this. No Refunds. Enjoy!
www.kleinvintagewatch.com
/ kleinvintagewatch
www.instagram....
No ammonites were harmed in the making of this video.

[@oyster_3694]

Love the crickets!! Relaxing!

[@neelsengupta662]

Lovely job, S!

[@Nachovalenti899]

Nice watch and nice work on it. Well done Spencer. Thanks for sharing.

[@SideWalkAstronomyNetherlands]

Ah that crystal... :)

[@jambobbyb124]

I love my 7549 7010 best Seiko ever 😮

[@dodgydruid]

I have a 4R35 tuna which has a fair bit o' modding with a barbed wire engraving on the shroud, I fitted a full wheel Namoki gold rotor and has sapphire fore and aft. Waiting to fit a genny set of neon green fishbone hands (very pricey but will look so cool) and a Geckota jubilee bracelet makes it a lot o' presence on the ol' wrist. Do have another cheap and I mean £9 cheap Foxbox tuna from Aliexpress which came on a surprisingly good solid link bracelet and the shroud fits perfectly on my 4R35 if I want to tone it down a bit hehe

[@thedogbarber]

As far as keeping corosion at bay, I know you're car guy as well. Have you heard of Fluid Film? It creates a barrier with meatl parts to keep oxygen away form the surfaces, thus, keeping oxidation at bay. I though a little on swab and wiped over the surface might help some.

[@Supercruze]

I wonder if a small dab of Loctite blue on the shroud screw threads would ensure they do not accidentally back out over time.

[@jevgenijivanov6824]

Like! Can to install flat sapphire crystal from SBBN045 in SBBN007 Tuna? If yes - how much can cost original Seiko SBBN045 crystal?

[@SideWalkAstronomyNetherlands]

Shouldn't there be a clock inside the case? Ah later...:)