Movement
Calibre 23MS
← Back to all Calibres1939 – 1947
Lignes
10.5
Mounting Diameter
23.3
Frequency (vph)
18,000
Jewels
17
Power Reserve
44
Hand Sizes
1.34, 0.76, 0.20
Complication
Center Seconds
Power
Manual
Shape
Round
Size
Medium
No images yet
Notes
Derived from the 10.68ZS and 23OS, M designation stands for 'mince', thin in French. Visually similar to the 23OS but thinner, intended for use in gold cased watches, it would have a higher level of finishing than the 10.68ZS.