For SP: Seiko 6105-8000 Proof / Proof evaluation, August 20, 2024

[@bluejaxs]

Thanks! This was my father's watch that he got during his service in the US Navy onboard the USS Ranger during Vietnam. I'm glad to see it getting the attention it deserves. Appreciate the valuable insight and hoping it turns out great in the end.

[@andyhansen3117]

Viet Nam vet here. I bought my Dad a seiko world timer while I was there but never got myself a watch. Regret that now and the in-laws got the world timer so out of luck there too, but made it back and now really into watches! On the bonus side my brother-in-law bought a 6139-6000 in -70 , a proof with a perfact dial and he gifted it to me. I consider myself ahead of the game!

[@Gr33nMachine83]

I just received the spb317. I believe a reinterpretation of this watch? Beautiful.

[@darthtater]

This will be an awesome restoration

[@brucebarlow6604]

Good timing on this one just finished a 6105a Sealion restoration from 1978. I remember when I restored my 6105 the first owner did some painting as well I found paint under the bezel. This will be a good one to show the arbor jewelling on.

[@Leo-Crespi]

Nice watch with wonderful history.

[@slim2429]

Is there some truth in reusing the original mainspring to protect the original arbor ports (at the cost of getting better amplitude) if re-jeweling the arbor ports is not an option?

[@SpencerKleinVintageWatch]

I rarely replace the mainsprings - Seiko's servicing instructions are clear on cleaning and reinstalling, so that's what I do. Yes it's a contributing factor in the overall lower amplitude that vintage Seikos display, but with solid amplitude in 240s / 250s you'll have a fine timekeeper. As for protecting the arbor ports, there's no way to protect them without jeweling them, honestly. The lower one especially. They just wear and wear and wear.

[@SideWalkAstronomyNetherlands]

:)