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Thread: Seiko 7A38 restoration

  1. #1

    Seiko 7A38 restoration

    I bought this 7A38 7270 soon after I started work in 1987. Used it daily for 10 years, then sporadically for 2 years. At that point it was in a sorry state and I tossed it in a drawer. The mineral crystal was heavily scratched, one pusher was jammed in and the other two were really sticky, there was slight condensation inside with marking on the dial, and the bracelet was stretched, gunged up and heavily scratched.

    When I came across it recently, googled it and found they were a bit of a milestone (15 jewel all metal movement), I decided I'd like to freshen it up. I took all the pushers out and was amazed how much dirt was inside the tubes :shock: I had intended to replace the pusher gaskets but they were so small, and I'd already lost 2 of the pusher clips (which are about the same size), that I just re-lubed them and put them back, using spare clips from a broken Seiko. The dial cleaned up easily. Once running again I tweaked the adjuster and it now keeps time to better than 0.5s per week - making it my most accurate quartz.

    Finally I bought a new sapphire crystal from Cousins UK (never offered on the original watches but it's a standard size flat crystal and Cousins do a generic sapphire in the right size). I was going to have this fitted by a jeweller as I don't have a press. However with quotes betwen 15 and 30 pounds, and a warning that the crystal might break, I ended up just buying a press for £21 off ebay and doing it myself. Took 10 minutes to do, very simple.

    So, here it is, fitted on one of Eddie's Aviator straps:



    I wish I'd taken a 'before' shot now!

  2. #2
    Banned
    Join Date
    Jul 2008
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    Surrey, UK
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    2,932

    Re: Seiko 7A38 restoration

    Superb watch, didn't know you could get one with day/date. Enjoy it! :)

  3. #3

    Re: Seiko 7A38 restoration

    Lovely watch..well worth putting back in order.

  4. #4
    Master
    Join Date
    Feb 2004
    Location
    Uk
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    Re: Seiko 7A38 restoration

    Marcus,

    Sounds like the pushers needs removing and you need to clean the crud/crap out, don't worry spares springs are easy to source if needed, long with gaskets

    Enjoy the watch they're SUPERB!

    Regs

    Bry

  5. #5
    Journeyman
    Join Date
    Jan 2009
    Location
    Poland, EU
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    145

    Re: Seiko 7A38 restoration

    Wow, now that watch has some history!
    Looks Good!
    Nice job!

  6. #6
    Grand Master boddah's Avatar
    Join Date
    Jun 2004
    Location
    England
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    12,813

    Re: Seiko 7A38 restoration

    Nice job, particularly the DIY crystal fit :)
    "I looked with pity not untinged with scorn upon these trivial-minded passers-by"

  7. #7
    Craftsman MintG's Avatar
    Join Date
    Aug 2009
    Location
    Lincolnshire, England
    Posts
    445

    Re: Seiko 7A38 restoration

    It's looking mint chap! Well done!

  8. #8
    Master
    Join Date
    Sep 2007
    Location
    Cornwall
    Posts
    3,482

    Re: Seiko 7A38 restoration

    Quote Originally Posted by bydandie
    Superb watch, didn't know you could get one with day/date. Enjoy it! :)
    The 7A28 doesn't have the day date, the 7A38 does, both are cracking watches,

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