ETA 2671 = BM 760

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7 3/4”’ | Automatic | Swiss Lever | Direct Sweeping Seconds | Date

Remarks:

  • Date with quick-setting
  • Movement family:
    • ETA 2640: 21,600 bph, hand winding
    • ETA 2641: 21,600 bph, hand winding, date
    • ETA 2650: 21,600 bph, automatic
    • ETA 2651: 21,600 bph, automatic, date
    • ETA 2658: 21,600 bph, automatic, date, day
    • ETA 2660: 28,800 bph, hand winding
    • ETA 2661: 28,800 bph, hand winding, date
    • ETA 2670: 28,800 bph, automatic
    • ETA 2671: 28,800 bph, automatic, date
    • ETA 2678: 28,800 bph, automatic, date, day
  • Options:
    • Rotor with ball bearings
    • Hacking seconds
    • Fine regulation

 

  • Listing ID: 7321
  • Manufacturer / Brand: ETA / BM
  • Caliber: ETA 2670 = BM 760
  • Size in French Lignes: 7 3/4'''
  • Size range mm largest diameter: 0 - 22 mm
  • Shape: Round
  • Winding: Automatic
  • Hands Setting: Crown
  • Seconds Hand: Sweeping seconds (central seconds)
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: Date
  • Jewels: 17, 21, 25
  • Setting Lever Screw/Pin Position: Left
  • Balance Position: Right (0 - 120°)
  • Shock Protection: Incabloc
  • Beats per hour: 28,800
  • Balance Type: Glucydur
  • Power Reserve: Approx. 38 hours
  • Production Period: Unknown, probably around 1970+
  • Identification: Movement marked with ETA 2671 under the balance wheel. And with BM-760 on the rotor.
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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