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You are here: Home / Movements / Landeron 71

Landeron 71

Last Update: April 13, 2022

Brand:Landeron
Family:
Landeron 71 Family
Height:5.90 mm
Jewels:17
Reserve: hours
Frequency:18,000 A/h
Winding:Hand winding
Diameter:31.0 mm (14 ligne)
 Cal. 71 Complications:2-Button, Cam Switching Chronograph, Chronograph, Horizontal Clutch Chronograph
Hands:30 Minute Chronograph Hand at 3:00, Central 60 Second Chronograph Hand, Central Hour Hand, Central Minute Hand, Small Seconds Hand at 9:00
Distinguishing Technical Characteristics
Hand-Winding
Clockwise Balance Cock
Screwed Balance
Indexed Regulator
Balance
Balance at 12:00
Production:  – 
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s

Cal. 71 is a 14 ligne cam-switching chronograph movement produced by Landeron (Charles Hahn & Cie.) in the 1940s and 1950s. It is part of a slightly-larger family of cam-switching chronograph movements less well-known than the famous and innovative Cal. 48 family. The various Cal. 71 family movements are similar, differentiated mainly by changes to the cam mechanisms, bridges, and plates.

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

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