A. Lange and Söhne Lange 31 Rose Gold

A. Lange & Sohne Lange 31 (18K RG / Leather) 130.032 $87,995




Contact : arthur at luxurybazaar dot com



Watch Specs:



Ref Number: 130.032

Case Size: 45.9mm

Also Known As: 130032

Gender: Gents

Movement: Automatic

Functions: Constant-force escapement for controlled torque delivery. Power-reserve indicator. Patented outsize date. 31 days power reserve.

Band Type: Hand-stitched crocodile with an 18K Rose gold deployant buckle

Signatures: A. Lange & Sohne

Included Items: Manufacture's Box and Papers



Description:
LANGE 31 (this model in 18K Rose gold) - 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.


The key is inserted through an aperture in the sapphire-crystal case-back.
Three seals between the winding mechanism and the case protect the watch against ingress of water up to a pressure of 3 bar.
To prevent inadvertent overtightening of the mainsprings, the key features an integrated torque limiter.
An attempt to turn the key further – once the mainspring is fully wound – disengages the triangular toothing of two wheels inside the key and interrupts the flow of power.


Dial: Solid silver, argente.


Hands: Rose gold.


Case: Diameter 45.9 mm. Height 15.9 mm.

Sapphire-crystal glass and caseback.


Strap: Hand-stitched crocodile with an 18K Rose gold deployant buckle


Movement: Calibre L034.1. Key-wound.

Constant-force escapement for controlled torque delivery.
Power-reserve indicator. Patented outsize date. 31 days power reserve.


With its unprecedented 31-day power reserve, the Lange 31 again demonstrates A. Lange & Sohne's ability to redefine benchmarks in precision watchmaking.


Watch Pictures: