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You are here: Home / Movements / Venus 122

Venus 122

Last Update: September 15, 2022

Brand:Léonidas, Vénus
Family:
Unknown
Height:6.80 mm
Jewels:7
Reserve:18 hours
Frequency:18,000 A/h, 36,000 A/h
Winding:Hand winding
Diameter:39.90 mm (18 ligne)
  Complications:Chronograph, Monopusher Chronograph
Hands:30 Minute Chronograph Hand at 12:00, Central 60 Second Chronograph Hand
Distinguishing Technical Characteristics
Hand-Winding
Balance at 1:30
Barrel at 10:30
Production:  – 
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s
1934 Léonidas/Berna ad

Cal. 122 is an 18 ligne stopwatch movement produced by Vénus in the 1930s and 1940s. It used a 5-column wheel to control a 1/5 second central stopwatch hand, with a 30 minute counter subdial. One version of the movement features a 30 second dial with 1/10 second accuracy and a 15 minute counter. Additional models had other timer modules.

The stopwatch is controlled using a pusher located at 10:30 on the dial. It is wound using the crown, and lacks timekeeping or any setting mechanism.

Most Cal. 122 movements are found in Léonidas stopwatches and are often stamped with both companies’ hallmarks. Léonidas and Berna versions feature the patented spare parts container embedded in the movement, while those produced for other brands to not.

More detail on the history of Vénus is available in the Grail Watch article, “The Rise of Vénus, Legendary Chronograph Maker“

Images are taken from official publications and are used here for commentary and educational purposes. Copyright is held by the original owner as noted.

Ranfft Pink Pages

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