ROLEX 72 - 727

Data: Rolex 727 (base caliber: Valjoux 72).

• 17 jewels, manual wind chronograph, 60 sec, 30 min, 12 hour counter. Pillar wheel.
• Size: 13'''  29.50 mm.
• H: = 6,95 mm.
• N: = 21600 A/h.
• Power reserve: 46 h.

Versions: 13'''

• 72A:     18000 a/h, 60 s, 30 min, 12 h counter.
• 72B:     18000 a/h, free sprung balance, 60 s, 30 min, 12 h counter.
• 72BC:   18000 a/h, free sprung balance, calendar, 60 s, 30 min, 12 h counter.
• 722:     18000 a/h, free sprung balance, 60 s, 30 min, 12 h counter (as 72B).
• 722-1:  18000 a/h, free sprung balance, 60 s, 30 min, 12 h counter.
• 727:     21600 a/h, free sprung balance, 60 s, 30 min, 12 h counter.