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Adventures in Amateur Watch Fettling

~ Servicing, restoration and modification of wristwatches

Adventures in Amateur Watch Fettling

Category Archives: Diver’s Watches

Watches designed to conform to the ISO 6425 standard, having a minimum water resistance of 10 atm (100 m).

8 years, 125 posts, 1 million page views

Mar 20, 2020

Next month marks the 8th anniversary of the first entry in this blog charting my adventures in amateur watch fettling.  …

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Citizen Super Crystal Date Parawater 150m Part II

Nov 11, 2019

Intermission concluded and we rejoin battle, the movement parts having emerged fresh from their bath.  I always clean the mainplate …

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Citizen Super Crystal Date Parawater 150m AUDS 52801-Y from April 1967: Part I

Nov 9, 2019

In reflecting on the impact of Japanese watchmaking through the 1960’s and 70’s it is all too easy to overlook …

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Seikomatic SilverWave 50 Proof from January 1963

Jul 1, 2019

Paradoxically, the year 1963 can simultaneously provide a historical reference point to the development of the quartz watch movement and …

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Natural selection: A Seiko 6306-7001 from 1979

Sep 2, 2018

In 10 short years between 1965 and 1975, Seiko had somehow managed to conceive, design and produce three generations of …

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A couple of loose ends

Sep 10, 2017

A number of circumstances have conspired in the past few weeks to keep me from much in the way of …

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Form follows function: a Seiko Tuna 7549-7010 from 1983

Jun 8, 2017

What exactly constitutes an iconic watch design? Is it something that derives from design for its own sake and somehow …

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WYSIWYG: A Seiko 7548-700B

Feb 18, 2017

Genuine. Straight. Honest. Three words that should foster a sense of confidence that a transaction you are about to embark …

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Third time’s a charm: 62MAS relume reloaded, reloaded

Nov 26, 2016

There are times when a wise man knows when enough is enough, when to cash your chips, to pull back …

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Transition state theory: A brace of sports divers from 1969

Oct 2, 2016

This week, Ahmed Zewail, the Egyptian-American Nobel prize-winning chemist died. Zewail pioneered the field of femtochemistry, a sub-discipline within chemistry …

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The law of unintended consequences

Sep 5, 2016

Hare-brained schemes and cunning plans are all very well but all too often they fall victim to the law of …

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Recent Posts

  • 3D-printed watchmaking tools
  • A Seiko Cronos Special from 1963
  • Overture to the first Grand Seiko:  the Lord Marvel J14039
  • King Seiko 15034 from October 1962
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    • 4520
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    • 6145
    • 6146
    • 6245
    • 9F82
  • King Seiko
    • J14102
    • 15034
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    • 4502
    • 5245
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  • Seiko
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    • Champion
    • Chronograph
      • 5719
      • 6138
      • 6139
      • 7016
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    • Cronos
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Top Posts & Pages

  • A pair of kings: The King Seiko Hi-Beat Automatic Part I
  • The Seiko EL-370 electronic watch
  • A faux milspec 6309 revisited:  Seiko 6309-8010 from 1976 and 1977
  • Seikomatic Weekdater 6206-8990 from 1964
  • A Grand Seiko 5646-7000 from June 1970:  the third generation automatic Grand Seiko
  • King Seiko 5626-7041 Officially Certified Chronometer from May 1974
  • A Seiko 7018-7000 automatic fly-back chronograph from 1971
  • A Citizen Promaster 3802-451732 Y Quartz Diver

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