AS 1977-2

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Data: AS 1977-2


  • 17/21 jewels, manual wind.

  • Size: 5,5 x 6,75''' 13 x 15,15 mm.

  • H: = 3,60 mm.

  • N: = 21600.

  • Power reserve: 44 h.


Versions:


  • 1012: N = 18000 a/h.

  • 1582: minor modifications.

  • 1677: N = 21600 a/h.

  • 1777: minor modifications.

  • 1977: new regulator, stronger mainspring.

  • 1977-2: new balance and barrel.

  • 1977-2: new winding gear.

  • 1977-4: balance cock and regulator new.

  • 1977-5: new click.

  • 1978-2: new winding gear.

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