© Lange Uhren GmbH
Lange L034.1 is a caliber by A. Lange & Söhne.
World's first mechanical caliber with a power reserve of 31 days and a constant-force escapement. The two mainsprings located in the double barrel are five to ten times longer than conventional mechanical wristwatch movements, each measuring 1,850 millimeters.
Used in the A. Lange & Söhne Lange 31 model.
- Balance cock engraved by hand
- Hours, minutes
- Ø 37.3 mm, height 9.6 mm
- 21,600 A/h
- Number of components 406
- Power reserve 31 days
- From 2007