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You are here: Home / Movements / Landeron 39

Landeron 39

Last Update: April 12, 2022

Brand:Landeron
Family:
Landeron 39 Family
Height:6.50 mm
Jewels:17
Reserve: hours
Frequency:18,000 A/h
Winding:Hand winding
Diameter:32.45 mm (14.5 ligne)
 Cal. 39 Complications:2-Button, 7-Column Chronograph, Chronograph, Column Wheel Chronograph, Horizontal Clutch Chronograph
Hands:45 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
7-Column Chronograph
Balance
Balance at 12:00
Column Wheel
Column Wheel at 6:00
Production:  – 
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s

Cal. 39 is a column wheel chronograph movement produced by Landeron (Charles Hahn & Cie.) in the 1940s. It features a Breguet hairspring, screwed balance, and regulator index. It used a horizontal clutch and column wheel but was plainly finished and utilitarian.

Cal. 42 was similar but used a flat spiral hairspring and added an hour counter register. A new chronograph mechanism was fitted for the derived Cal. 52. Cal. 53 was a more radical departure, with a cam-switching chronograph mechanism from Dèpraz similar to the Landeron/Dèpraz Cal. 48.

Cal. 39 was commonly used by Nicolet watch and Breitling.

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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