ETA 735-721, Balance, complete

• NOS ETA original balance, complete in factory packaging.
  

• Fits cal: 735, 737, 738, 739, 742, 743, 744, 752, 755, 772, 783, 784, 786, 801, 836, 837, 847, 849
  

Technical data ETA cal: 735

• 15 jewels, manual wind, sub second.
• S: = 11 x 7.75'''  25.0 x 17.60 mm.
• H: = 3.50 mm.
• N: = 18.000 A/h.
• Power reserve: 47 h.
• Mainspring: 1,30 x 9,5 - 0,11 - 310 mm. (PRIMA 130N31).