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Adventures in Amateur Watch Fettling

~ Servicing, restoration and modification of wristwatches

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Tag Archives: Citizen Cosmotron

Citizen Cosmotron X8 postscript

May 3, 2024

Those of you who read the recent account of the restoration of an early Citizen Cosmotron X8 electric watch may …

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A Seiko Cronos Special from 1963
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King Seiko 15034 from October 1962
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Grand Seiko
- 4520
- 5646
- 5722
- 6145
- 6146
- 6245
- 9F82
King Seiko
- J14102
- 15034
- 4420
- 4502
- 5245
- 5626
Seiko
- Alpinist
- Bell-matic
- Champion
- Chronograph
  - 5719
  - 6138
  - 6139
  - 7016
  - 7018
- Cronos
- Cronos Special
- Crown
- Diver’s
  - Cronos Sea horse
  - Silverwave
  - 62MAS
  - 6105
  - 6306
  - 6309
  - 7548
  - 7549
  - SKX
  - Sports Diver
- Electronic
- GMT/Navigator
  - NH34
- Ladies’ watches
- Lord Matic
  - 5216
  - 5606
- Lord Marvel
  - J14039
  - 5740A
  - 5740C
- Marvel
- Sea horse
- Seiko 5
- Seikomatic
  - 603
  - 395
  - 5106
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  - 8305
  - 8346
- Sportsmatic
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- Quartz
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  - 2625
  - 38A
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  - 9943
Citizen
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Top Posts & Pages

Twin Quartz: A Seiko Grand Quartz 9943-8000 from June 1978
Seiko 7016-5000 Monaco Fly-back Chronograph
3D-printed watchmaking tools
Hidden depths: A Seikomatic-R from 1966
Palate-cleanser: A Seiko Sea horse 6602-8990 from January 1965
A technical tour de force: Seikomatic-P
This is not a military watch†: a Seiko Sportsmatic 6619-8280 from 1967
Citizen Super Crystal Date Parawater 150m AUDS 52801-Y from April 1967: Part I

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