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You are here: Home / Movements / Landeron 248

Landeron 248

Last Update: April 13, 2022

Brand:Landeron
Family:
Landeron 48 Family
Height:6.2 mm
Jewels:17
Reserve:41 hours
Frequency:18,000 A/h
Winding:Hand winding
Diameter:31 mm (13.75 ligne)
  Complications:2-Button, Cam Switching Chronograph, Chronograph, Oscillating Pinion 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. 248 is one of a family of cam switching chronograph movements produced by Landeron. It is closely related to the preceding Cal. 148. Like all movements in the family it uses Heuer-style oscillating pinion rather than a traditional horizontal clutch to activate the chronograph function.

Cal. 248 was widely used in the 1960s, including by Heuer-Leonidas, Nevada, and Ardath.

Landeron Calibre 48 Chronograph Operation

Unlike many 2-button chronograph movements, the stop function shares the reset button rather than the start button. Therefore, on many Cal. 48 family movements from Landeron, the buttons function as follows:

  • 2:00 – Start
  • 4:00 – Stop/Reset

The later Cal. 149, Cal. 189, Cal. 349, and later movements have a conventional start/stop button at 2:00.

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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