2628A (4 Hz)
2628B (3.5 Hz)
Mainplate
ref. 72226281002007
Engraving 2628A
ref. 7222628B81002007
Engraving 2628B
Balance bridge
ref. 7222500B10058°
ref. 7222500C10058°
Barrel, complete
ref. 7222500B20010
ref. 722112020010
Mainspring
ref. 7222500B20102
ref. 722112020102
Oscillating weight
2628
2628
ref. 72226282201006
2628B
2628B
ref. 7222628B2201006
Second wheel
ref. 722112830027*
96 teeth and eight arms
ref. 7222628B30027*
105 teeth and
fi
ve arms
Intermediate escape wheel
ref. 7222500B30039
8-leaf pinion
ref. 7222500C30039
10-leaf pinion
Cutout in upper pivot shank
Co-Axial wheel
ref. 7222500B30040
Pinion Ø = 1.999 mm
ref. 7222500C30040
Pinion Ø = 2.119 mm
Pallet fork
Old shape
ref. 7222500B40010
New shape
ref. 7222500C40010
Differences between versions 2628A and 2628B
OMEGA SA
WORLD SERVICE ORGANIZATION
GT-19-C-006-E - D -2628
/5
