Lange L922

Description:

• Manufacture movement SAX-0-MAT
• Escapement: stone lever
• Bi-directional winding embossed “three-quarter rotor” in 21ct gold and platinum with 4 ball bearings in the change gear
• Patented Zero-reset
• Hand-engraved balance cock with swan's neck fine regulation
• Glucydur screw balance with hacking seconds, Nivarox balance spring
• Beat adjustment with micrometer screw
• Glashütte Three-quarter plate in untreated Nickel silver
• Bridges with Glashütte ribbing
• All edges in the movement chamfered and polished

Functions:

• Hours, minutes
• Small seconds at 6 h
• Big date
• Perpetual calendar with moon phase indication

Data:

• ∅ 30.4 mm, H 5.4 mm
• 21,600 A/h
• 43 jewels, including 4 in screwed gold chatons
• 478 components
• Power reserve 46 h

Production period:

• From 1997