Lange L021

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Lange L021.1
© Lange

The Lange L021.1 is a calibre by A. Lange & Söhne.

Self-winding manufacture movement with big date.

Used in the model A. Lange & Söhne Lange 1 Daymatic.


Self-winding movement
Rotor with weight segment in platinum
Balance clock engraved by hand
Shock-resistant Glucydur balance with regulation eccentrics
Fine adjustment system with lateral setscrew and swan's neck spring


Hours, minutes
Small seconds with hacking seconds
Big date
Date and day of weeks correction pusher


Ø 31,6, height: 6.1 mm
67 jewels, including 7 in gold chatons, fixed with blued screws
21,600 A/h
Components: 427
Power reserve 50 h

Production period:

From 2010