A. LANGE & SÖHNE

LANGE 31 PLATINUM - NEW RARE 45.9MM 31-DAY POWER RESERV

$135,575.-

Details

Reference number:
Watch case:
Condition:
Year built:
Price:
Case size:

130.025
Platinum
0 new
$135,575.-
45 x x 15.00mm

Movement type:
Specials:

Manual Wind
with box, with papers, New

Specifications

Glass:
Waterproof:
Dial:
Dial numerals:
Bracelet material:
Bracelet color:
Clasp:
Buckle material:
Functions:

Sapphire Glass
30 m
silver
Crocodile skin
black
platinum
Date

Other:

Display back, Small seconds, Power reserve display

Provider

Dealer:
Contact:
Telephone:
Location:

Motion in Time
David Shamayev
1-212-302-1678
56 West 47th Street
10036
New York
United States

Show all watches from Motion in Time

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Comments by the dealer

Brand New Super Super Rare - A. Lange & Sohne LANGE 31 Platinum 45.9mm

The Lange 31 is yet another example of A. Lange & Söhne’s ability to redefine benchmarks in precision watchmaking. It is the world’s first mechanical wristwatch with a power reserve of 31 days and a constant-force escapement. It is this device that makes it possible for the first time to meaningfully harness such a substantial power reserve. For an entire month, the mechanism assures the highest level of rate stability and rate accuracy.

HARMONIOUS BEAUTY.

Thanks to its unmatched autonomy, the LANGE 31 offers a useful benefit – you may forget to wind it once in a while. Because even if you take the watch off, it keeps telling the right time for as long as 31 days. To emphasis this special functionality, the solid-silver dial bears the inscription “Monats-Werk”. Additionally, the power-reserve indicator was accorded ample space on the right-hand side of the solid-silver dial. The patented outsize date on the left-hand side har-moniously balances the face.

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.

Reference No. 140.025

RETAILS FOR $159,500
* * * CALL OR EMAIL FOR BEST PRICE * * *

Brand New - complete with box and papers!!

E-Mail or Call

David
T: 1-212-302-1678
M: 1-646-509-5063

E-MAIL: davidofmit@gmail.com

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