ETA 1080-721N, Balance, complete

• ETA original balance in opened factory packaging.

• Fits cal: 1080, 1081, 1093, 1152, 1153, 1256, 1257, 1258, 1259
  

Data:

• 15/17/19/21 jewels, manual wind, sweep second.
• Size: 10,5''' 23,3 mm.
• H: = 4,15
• N: = 18.000 A/h.
• Power reserve: 42 h.

Versions:

• 1080: 10.5'''
• 1081: 11.5'''
• 1093: 11.5''' date.
• 1152: 10.5'''
• 1153: 11.5'''
• 1256: 11.5''' automatic wind.
• 1257: 11.5''' automatic wind, minor modifications.
• 1258: 11.5''' automatic wind, date.
• 1259: 11.5''' automatic wind, date, minor modifications.