LANGE 31
The world’s first mechanical wristwatch with a power reserve of 31 days and a constant-force escapement that powers the going train with constant torque delivery. The tremendous amount of energy needed to keep the watch running so long is transferred to the movement with a winding key and stored in a twin mainspring barrel.
Model in platinumReference 130.025
Movement: Calibre L034.1. Key-wound. Constant-force escapement for controlled torque delivery. Power-reserve indicator. Patented outsize date. 31 days power reserve. Dial: Solid silver, rhodié. Hands: Rhodiumed gold. Case: Diameter 45.9 mm. Height 15.9 mm. Sapphire-crystal glass and caseback. Hand-stitched crocodile strap. Platinum deployant buckle. Model in 18-carat pink goldReference 130.032 F
Movement: Calibre L034.1. Key-wound. Constant-force escapement for controlled torque delivery. Power-reserve indicator. Patented outsize date. 31 days power reserve. Dial: Solid silver, argenté. Hands: Pink gold. Case: Diameter 45.9 mm. Height 15.9 mm. Sapphire-crystal glass and caseback. Hand-stitched crocodile strap. Solid-gold deployant buckle. |
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