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A. Lange & Söhne Lange 31 45.9mm 130.025

$180,806

+ $112 shipping to United States of America

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More information
Condition New
Scope of delivery Original box, original papers
Availability Ready to ship in 6-10 days
Expected delivery On request
Payment Method
Bank transfer

Seller
Reviews: 78
This dealer is from Hemel Hempstead, Hertfordshire, United Kingdom.
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Details

Basic Info

Listing number 4U43X0
Brand A. Lange & Söhne
Model Lange 31
Code 11527
Movement Manual winding
Case material Platinum
Bracelet material Crocodile skin
Year Unknown
Condition New (Brand new, without any signs of wear)
Scope of delivery Original box, original papers
Gender Men's watch/Unisex
Location United Kingdom, Hemel Hempstead, Hertfordshire

Caliber

Movement Manual winding
Power reserve 744 h
Number of jewels 62

Case

Case material Platinum
Case diameter 45.9 mm
Thickness 15.9 mm
Water resistance 3 ATM

Bracelet/strap

Bracelet material Crocodile skin
Bracelet color Black
Clasp Fold clasp

Others

Power Reserve Display

Description

The Lange 31 – with an amazing 31 day power reserve!
One of the most challenging aspects in production of mechanical wristwatches is the duration of the Power Reserve, understandably the longer the Power Reserve the more convenient it is to the wearer. Thus most top brands invest considerable time, effort & funds into developing a mechanism that can store the most amount of energy within the constraints of a wristwatch case size. Storing energy is only half of the challenge, as the torque in the spring will fluctuate considerably (especially in watches with larger power reserves), which in turn will have a negative impact on accuracy. Thus an equally challenging feat is to take the stored energy and transfer it to the movement in a controlled and uniform manner.
Enter the LANGE 31, Lange presents the world’s first mechanical wristwatch with a power reserve of 31 days and a patented constant-force escapement. The double stacked mainspring barrels, each with an impressive 185cm long spring, store the energy. A constant-force escapement between the twin mainspring barrels and the going-train assures that the balance receives an identical amount of energy every ten seconds, regardless of the state of wind of the springs! Another practical feature is the “Key Winding Mechanism” where the watch is not wound by the crown (which would be an tedious job) , rather it is wound using a provided key that fits into a matching aperture on the case (sealed with 3 gaskets to ensure water resistance). The provided key has a built-in torque sensor, once the watch is almost fully wound the key senses the increase in tension & will disengage the ratchet key.

This watch features:
Solid polished finished platinum case with fine brushed edges.

Silver dial with applied index hour markers.

Polished hands.

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

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

Power reserve indicator at the right side of the dial.

Movement: Lange calibre L034.1.
Comprised of 406 components.
Contains 61 ruby jewels & 1 transparent sapphire jewel - total of 62 jewels.
Beats at 21,600 vph.
The movement has an impressive power reserve of 31 days (744 hours).
Three quarter plate with fine ribbing finish.
Blued screws.
All papers included

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Seller

The Watch Source Limited

Breakspear Park
Breakspear Way
Hemel Hempstead, Hertfordshire HP24TZ
United Kingdom
Show phone/fax number
Tel.: +44 1442 801130
Mobile: 00441442 801130
We speak:
  • English
Trusted Seller since 2018
8,156 watches listed
Number of watches sold via Trusted Checkout: 124

4.7 out of 5 stars  |  Reviews: 78

Detailed explanation of ratings 

 4.7 Shipping
 4.9 Item description
 4.6 Communication
96%
of buyers would recommend this dealer.

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