Movement
Calibre 23ZS
← Back to all Calibres1947 – 1958
Lignes
10.5
Mounting Diameter
23.3
Thickness
4.6
Frequency (vph)
18,000
Jewels
17
Power Reserve
44
Complication
Center Seconds
Power
Manual
Shape
Round
Size
Medium
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Technical Diagram
Notes
The 23ZS was designed to be thinner than the 10.68ZS but more robust than the thinner and more delicate 23M. It was also designed to be more easily machine manufactured with less human interventions than the 23MS and it would essentially replace both the 10.68ZS and 23MS after its introduction.
23Z: sub second
23ZD: sub second, date
23ZS, 23ZN: sweep second
23ZSD: sweep second, date