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Home » The Gruen Model Database » 1920's » 50th Anniversary Pocket Watch
50th Anniversary Pocket Watch [message #17916] Tue, 27 December 2022 18:53 Go to previous message
kastner is currently offline  kastner
Messages: 331
Registered: May 2013
Location: Pasadena CA
Gruen Guildsman
Model name : 50th Anniversary
Type : Pocket watch
Period/date : 1924 (The movement was made in 1924, but it is unclear when this watch was cased and sold)
Gender : Men's

Case Maker : Gruen Cincinnati
Case Material : 18kt white gold
Case Serial : 1072311
Case Style no : none
Case Inscription (inside caseback): "Made Especially for Gilbert J Easton"

Caliber : See below
Movement Maker : Gruen
Movement Serial: 204

Movement details from Priceless Possessions of A Few by Fuller.

  • 17-linge (approximately 10-size) open face, 23 jewels (21 extra quality ruby jewels, plus two faceted diamond cap jewels over escape wheel and balance wheel pivots on upper plates)
  • 12kt gold plates (total 19 penny weight), individually engraved in floral relief pattern
  • Steel cup in each counter-bored hole for plate screws
  • Follow-up die used to slightly bevel around edge of spoke and inside rim of wheels
  • Gold plated train wheels
  • Chronometer style balance with solid gold screws
  • Detachable staff which can be removed without disturbing relationship of balance hairspring, collet, and roller jewel
  • Jewel pin fastened in balance arm with a bearing twice the length of the usual watch, making it doubly secure against coming loose
  • Double steel roller
  • Hand finished visible steel escapement with posing arms
  • Patent micrometic regulator of continuous equal action
  • Meantime adjusting gold screws
  • True isochronal and Breguet hairspring
  • Finest Swiss mainspring of lasting quality and great elasticity made by hand-rubbing so that the motive power is practically constant whether watch is fully wound or nearly run down
  • Patented American pendant-set device of very few pieces
  • Geneva style stop works and cut-away barrel bridges
  • Eight adjustments to all positions, isochronism and temperature
  • Fine Silver dial
  • Patented inverted (Verithin) wheel train construction
  • Extra finely finished in all details
/vgforum/index.php?t=getfile&id=10299&private=0, /vgforum/index.php?t=getfile&id=10302&private=0
/vgforum/index.php?t=getfile&id=10300&private=0, /vgforum/index.php?t=getfile&id=10301&private=0
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