Omega CALIBRE 2628 - Balance, Shock-Absorber, and Setting Lever Differences

Differences between versions 2628A and 2628B
2628A (4 Hz) 2628B (3.5 Hz)
Balance complete with stud
Inertia
Diameter
Balance rim thickness
Pivots
Shock absorber
Rate correction with 1 screw-revolution (on both screws)
ref. 7222500B4005021
7.2 (mgcm2)
8.54 mm
0.37 mm
0.08 mm cylindrical
0.09 mm = pivot hole Ø
57 seconds
ref. 7222500C4005021
9.4 (mgcm2)
8.70 mm
0.45 mm
0.07 mm conical
0.08 mm = pivot hole Ø
86 seconds
Stop lever
ref. 722250056070
ref. 7222500C56070
Shock-absorber, upper
ref. 722112070530
ref. 7222500C70530
Shock-absorber, lower
ref. 722112070531
ref. 7222500C70531
In settings, upper
ref. 722112070640
ref. 7222500C70640
In settings, lower
ref. 722112070641
ref. 7222500C70641
OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-006-E - D -2628
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