RECORD 31-722, Balance, complete

• RECORD original cut bimetllic balance with Breguet end curve. In very good used condition.
  

• Fits cal: 31, 32
  

Technical data: RECORD cal: 31

• 16 jewels, manual wind, sub second
  
• Size: 18'''   40.5 mm.
  
• H: = 4.15 mm.
• N: = 18.000 A/h.
• Power reserve: 30 h.
• Mainspring: 1.80 x 16 - 0.20 - 460 mm.

Versions:

• 31:          H: = 4.15 mm, open face.
  
• 32:          H: = 4.15 mm, hunter.
  
• 33:          H: = 4.70 mm, open face.
  
• 34:          H: = 4.70 mm, hunter.