A. Lange & Sohne Lange 31

REF : 130.025

Lange’s best masters relentlessly pursued inspiration so as to acquire perfection in watchmaking, and this is clearly obvious in the Unrivalled Masterpieces collection. Comprising benchmark chronograph models with hallmarks such as a large double date window, flyback switching mechanism, an ultra-precise minute counter, and an ample power reserve, the collection boasts high end dress watches adorned with more than a dash of sheer elegance. Some of the most notable pieces of the collection include the Datograph, DoubleSplit, Lange 31, or Grand Complication.

"Product added 06/17/14 in our database "(3687 Days)

Watch info

Case

Shape

Round

Diameter (in mm)

45.9

Material

Platinum

Water Resistance

30 m (100 ft.)

Winding Crown

Fluted Platinum, Pull/Push

Model Case

Solid polished finished platinum case with fine brushed edges, Transparent sapphire crystal case back

Bezel

Fixed Platinum

Crystal

Scratch resistant sapphire

Dial

Indexes

Bâtons

Color

Rhodium, Solid Silver

Details

Applied index hour markers, Minute markers around the outer rim, Polished hands

Movement

Diameter (in mm)

37.3

Caliber

A. Lange & Sohne L034.1

Height (in mm)

9.6

Jewels

62

Winding

Manual winding

Functions

Hours, Minutes, Off-centre time indication, Outsize date, Power reserve indicator, Retrograde day-of-week display, Subsidiary-seconds

Oscillator

Balance spring manufactured in-house, Shock-resistant glucydur balance with eccentric poising weights

Movement

Hand-wound mechanical

Frequency

21,600 semi-oscillations per hour

Power Reserve

744 Hours

Bracelet

Material

Black Alligator Leather

Clasp

Platinum pin buckle

Bracelet

Large square scale Black alligator leather strap

Complication

Large double date window at the 10 o’clock position with a button on the case edge for quick date correction

Power reserve indicator at the right side of the dial

Small seconds hand sub-dial at the 6 o’clock position

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