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Thread: April 1964 Seiko 5 Sportsmatic Done !!!!!

  1. #1

    April 1964 Seiko 5 Sportsmatic Done !!!!!

    Just finished the partial rebuild of a tatty gold plated Seiko 5 Sports. Serial number dates it to April 1964..

    I battled for hours trying to successfully fit the 2 minute date wheel springs. Numerous hunting with a magnet after they pinged off in all directions (even working covered with clingfilm).

    Now up and running at +8 secs/d face up.

    The real killer is that, as a 6606 movement, there is no quickset for the day or date. Thank god for Youtube where there is a single video that explains the best way to set this up.

    Not doing one of these again !!!


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  3. #2

  4. #3
    Disaster-- the end of the click has sheared.. Unleashed the mainspring. Completely stripped down--lost a tiny washer on the minute wheel(should work without it). Balance may also be a bit dodgy now. Manually made temporary click.. Now the movement no longer thinks it is a 18000 A/h movement, running at 25000 +, Found new click in Japan. Looks a bit terminal as during the strip down found red powder on a jewel (although it looks ok to the naked eye) Bit of a cluster ****.

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  6. #4
    New click spring obtained from japan. Stripped down again and still running fast. Got a demagnetiser on the way, lets hope that does the trick otherwise its scrap time.

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  8. #5
    Savagely Average
    Join Date
    Nov 2014
    Cloud 9
    You sound like quite the DIYer!

  9. #6
    Join Date
    Aug 2015
    Lakeland, Florida
    Assuming it was magnetized previously, how could it have been exposed during teardown and reassembly?

    Retired from Fire/Rescue on 1/05/2019 with 30 years on the job

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