![background image](http://html1.mh-extra.com/html/omega/3205/3205_technical-manual_4100515004.webp)
Differences between Calibre 3205A and 3205B
3205A (4 Hz)
3205B (4 Hz)
Main plate
ref. 7223205A10020
Ø Hole for dial fastener: 0.80 mm
ref. 7223205B10020
Ø Hole for dial fastener: 1.00 mm
Balance bridge
ref. 722330110058
ref. 7223301B10058
Balance
ref. 722330340055
Cylindrical pivots
Ø
0.08 mm
ref. 7223303B40055
Conical pivots
Ø
0.07 mm
Shock-absorber, upper
Jewel hole
Ø
0.09 mm
ref. 722330332025
Nickel-plated
Jewel hole
Ø
0.08 mm
ref. 7223313B32027
Gold-plated
Shock-absorber, lower
ref. 722330332062
Jewel hole
Ø
0.09 mm
Nickel-plated
ref. 7223303B70531
Jewel hole
Ø
0.08 mm
Gold-plated
In setting, upper
ref. 7223303A32127
Jewel hole
Ø
0.09 mm
ref. 7223313B32127
Jewel hole
Ø
0.08 mm
In setting, lower
ref. 7223303A32167
Jewel hole
Ø
0.09 mm
ref. 7223313B32167
Jewel hole
Ø
0.08 mm
/4
OMEGA SA
WORLD SERVICE ORGANIZATION
GT-19-C-062-E - B - 3205