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PARTS CATALOGUE / TECHNICAL GUIDE
Cal. 4205B / 4206B / 4207B
4208B / 4225A / 4227A
Movement
Time indication
Outside diameter ø17.5 mm
Casing diameterMovement size ø17.2 mm
Height
5.6 mm
Three hands (Hour, minute and second hands)
Vibrations per hour 21,600 (6 beats per second)
Additional
mechanism
Automatic winding
Jewels 17 jewels
21 jewels
The illustrations refer to Cal. 4206B (x 2.0)
4227A4207B4205B
Cal. No.
Item
[SPECIFICATIONS]
Date calendar
Day and date calendar
Instant calendar (date)
setting device
Instant calendar (day
and date) setting device
4206B
4225A
4208B
ø23.8 mm
ø23.4 mm
5.6 mm
Auxiliary hand winding
mechanism
17 jewels 21 jewels 21 jewels 21 jewels
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