Seiko 2906A

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8”’ | Automatic | Swiss Lever | Sweeping Seconds | Date | Day |

Remarks:

  • Automatic: manual winding possible
  • Date and day with quick setting
  • Movement family:
    • 2906A: 17 jewels
    • 2919A: 21 jewels
    • 2949A: 23 jewels

 

  • Listing ID: 2249
  • Manufacturer / Brand: Seiko
  • Caliber: 2906A
  • Size: 8'''
  • Shape: Round
  • Winding: Automatic
  • Hand Setting: Crown
  • Seconds Hand: Sweeping seconds (central seconds)
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date & Day: Date & Day
  • Jewels: 17
  • Setting Lever Screw/Pin Position: Right
  • Balance Position: Left (240 - 360°)
  • Shock Protection: Seiko Diashock
  • Beats per hour: 28,800
  • Balance Type: Glucydur
  • Power Reserve: Unknown
  • Production Period: Unknown, probably around 1975
  • Identification: Rotor marked with SEIKO and 2906A. Original data sheet available.
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-39#post-5180433
  • Country: Japan
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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