Lange L921

Description:

• Manufacture movement SAX-0-MAT
• Automatic winding with three quarter rotor, patented ZERO-RESET
• Escapement: stone lever
• Bidirectonal winding rotor in 21 ct gold and platinum
• Hand-engraved balance cock with swan's neck fine regulation
• Glucydur screw balance with hacking seconds, Nivarox balance spring
• Glashütte three-quarter plate in untreated Nickel silver
• Movement bridges with Glashütte ribbing
• All edges in the movement chamfered and polished

Functions:

• Hours, minutes
• Small seconds at 6 h
• Big date

Data:

• ∅ 30.4 mm, H 3.8 mm
• 21,600 A/h
• 36 jewels, including 4 in screwed gold chatons
• 378 components
• Power reserve 45 h

Production period:

• From 1997