AS 1677, Balance, complete, no: 721N, fab. Renata

• New Renata replacement balance for AS.
  

• N: = 21600 A/h.

• Fits cal: 1677, 1977 Incabloc.

Data: AS 1677

• 17/21 jewels, manual wind.
• Size: 5.75 x 6,75''' 13 x 15.2 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.