AS 1604-721N, Balance, complete, fab. Bergeon

• BERGEON repalcement balance for AS. New in factory packaging.
  

• Fits cal: 1604, 1637 (13''') Incabloc.

Data AS 1604

• 17/21 jewels, manual wind, center seconds.
• S: = 13''' 29.0 mm.
• H: = 4.5 mm.
• N: = 18000 A/h.
• Power reserve: 39 h.