Movement
Calibre 25.17
← Back to all Calibres1935 – 1950
Lignes
8 x 11.5
Mounting Diameter
17.8 x 26.55
Thickness
4
Frequency (vph)
18,000
Jewels
17
Power Reserve
43
Hand Sizes
1.33, 0.76, 0.20
Complication
Subsidiary Seconds
Power
Manual
Shape
Rectangle
Size
Rectangle
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Technical Diagram
Notes
The 25.17 (also referred to as the 9L especially in the postwar American market) was a continuation of the project of modernizing production on movements for all applications. It was intended for men's square writstwatches and replaced the 9.47N from which it was able to decrease finishing and manual intervention costs by 25%.