• Seiko
    • Bell-matic
    • Chronograph
      • 5719
      • 6138
      • 6139
      • 7018
    • Crown
    • Diver’s Watches
      • Cronos Sea horse
      • Silverwave
      • 62MAS
      • 6105
      • 6306
      • 6309
      • 7548
      • 7549
      • SKX
      • Sports Diver
    • Electronic
      • EL-370
      • 0703
    • GMT/Navigator
      • 6117
    • King Seiko
      • 4420
      • 4502
      • 5245
      • 5626
    • Ladies’ watches
      • 2205
      • 2625
    • Lord Matic
      • 5606
    • Lord Marvel
    • Marvel
    • Seikomatic
      • 395
      • 603
      • 5106
      • 6205
      • 6206
      • 6216
      • 6218
      • 8305
      • 8346
    • Sports
      • 603
      • 6106
      • 6119
      • 6601
      • 6619
      • 7606
    • Quartz
      • 0853
      • 2625
      • 3823
      • 4822
      • 7548
      • 7549
      • 9F82
  • Grand Seiko
    • 5722
    • 6145
    • 6146
    • 6245
    • 9F82
  • Citizen
    • Parawater
  • Orient
    • Orient Star Sky Sports
  • Swiss
    • Breitling
    • Omega
    • Rolex
    • Silvana
    • Tudor
    • ESA/ETA
    • Valjoux
  • Military
    • Cabot Watch Company
    • MkII
    • Precista
    • Seiko 6619
  • Modified watches
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Adventures in Amateur Watch Fettling

~ Restoration, modification and servicing of wristwatches

Adventures in Amateur Watch Fettling

Category Archives: Automatic chronograph

Chasing my tail: Fault-detection and diagnosis in a Seiko 6139B

April 5, 2019

In the spirit of my ongoing compaign to embrace the seasonal urge to clean house, herewith the second of two …

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Third time lucky: A Seiko 6138-8020 Panda from September 1975

March 3, 2019

I am by nature a reflective person and if I’ve learned anything at all in my time as an amateur …

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A Seiko 7018-7000 automatic fly-back chronograph from 1971

July 14, 2018

I am as guilty as the next man in allowing my eye to wonder, to catch the latest metaphorical flash …

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Glam Rock: the Seiko 6139-7060

January 1, 2017

Towards the end of June 1975, Pink Floyd’s Dark Side of the Moon entered its 118th week in the UK …

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Flying saucer: the Seiko 6139-7020 Speed-Timer

May 25, 2015

Lazy accusations that Japanese watch companies ape the Swiss in their design cues can be knocked into a cocked hat …

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A little bling is no bad thing

March 26, 2014

I find myself somewhat conflicted by the whole gilt/gold watch thing.   With a solid gold watch it’s the ostentation I …

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Seiko 6138-8020 revisited

January 28, 2014

When last we left this revived classic panda-dialed 6138-8020 (see here), all seemed well, the only area of mild dissatisfaction …

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The Seiko 6138B: a bridge too far?

June 28, 2012

A year or so after the release of their first automatic chronograph (the 6139), Seiko followed up with the 6138A, …

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The Seiko 6139B deconstructed

May 19, 2012

In spite of the numerous potential pitfalls involved in buying a classic Seiko automatic chronograph, I found myself bidding on …

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Separated at birth: a pair of 6139’s

May 5, 2012

The 6139A was Seiko’s (and arguably the world’s) first automatic chronograph, released in March (?) 1969 and featuring quickset day/date, …

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Recent Posts

  • A Grand Seiko powered 62MAS: Finished. Fin. The End.
  • Hot-rodding a Seiko 62MAS: Updates, YouTubing, Resources
  • Hot-rodding a Seiko 62MAS revisited
  • A Seiko King Quartz 0853-8025 from December 1976
  • Evolution: A Seiko Crown from 1959

Archives

Brands

  • Citizen
    • Parawater
  • Orient
    • Orient Star Sky Sports
  • Grand Seiko
    • 5722
    • 6145
    • 6146
    • 6245
    • 9F82
  • King Seiko
    • 4420
    • 4502
    • 5245
    • 5626
  • Seiko
    • Bell-matic
    • Chronograph
      • 5719
      • 6138
      • 6139
      • 7018
    • Crown
    • Diver’s
      • Cronos Sea horse
      • Silverwave
      • 62MAS
      • 6105
      • 6306
      • 6309
      • 7548
      • 7549
      • SKX
      • Sports Diver
    • Electronic
    • GMT/Navigator
    • Ladies’ watches
    • Lord Matic
      • 5606
    • Lord Marvel
    • Marvel
    • Seikomatic
      • 603
      • 395
      • 5106
      • 6206
      • 6216
      • 6218
      • 8305
      • 8346
    • Sports
      • 603
      • 6106
      • 6119
      • 6601
      • 6619
      • 7606
    • Quartz
      • 0853
      • 2625
      • 3823
      • 4822
      • 7548
      • 7549
      • 9F82
  • Swiss
    • Breitling
    • Omega
    • Rolex
    • Silvana
    • Tudor
    • ESA/ETA
    • Valjoux
  • Military
    • Cabot Watch Company
    • MkII
    • Precista

Top Posts & Pages

  • Flawed genius: A Seiko Lord Matic 5606-8010
  • A Seiko King Quartz 0853-8025 from December 1976
  • A Grand Seiko in all but name: the Seikomatic 6216-9000
  • King Seiko 5245-6000 from December 1971
  • A pair of kings: The King Seiko Hi-Beat Automatic Part I
  • WATER150mRESIST: A Seiko 7548-7000 from June 1982
  • Rise and Fall: The King Seiko 4502-7001
  • A technical tour de force: Seikomatic-P

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