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Brand Information: A Lange & Sohne
A. Lange & Söhne was first established in 1845 by Adolph Lange in Glasshutte. The firm established itself as makers of distinctive and fine timepieces - its pocket watches were prized by European gentry. Following the Second World War, the factory was seized by what was then East Germany. Walter Lange, the company's heir fled. It was only after the German reunification in 1990, that the founder's great grandson, Walter Lange, began reviving the company. With funding from LMH, the newly reformed company set out to restore its fine watchmaking tradition. The company was sold to the luxury conglomerate Richemont in July 2000. Although its watch parts may be cut with exceptional precision by the most advanced computer-aided machine tools, they are still finished, decorated and engraved by the skilled hands of some of the world's finest watchmakers.
Lange 31 Mens Wristwatch
Model: 130.032 |
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This is the A Lange & Sohne Lange 31 130.032 watch
Other series by A Lange & Sohne include: |
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| Item number: |
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130032 |
| Brand: |
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A Lange & Sohne |
| Style Number: |
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130.032 |
| Also Called: |
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130-032, 130.032 |
| Series: |
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Lange 31 |
| Style: |
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Mens |
| Case: |
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18k Rose Gold |
| Dial Color: |
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Silver (solid) |
| Watch Bracelet / Strap: |
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Leather - Red Brown Crocodile (hand-stitched) |
| Watch Clasp: |
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18k Rose Gold Buckle |
| Movement: |
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Manual Wind |
| Engine: |
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Cal L034.1 (21,600vph, 61 jewels, 406 parts) |
| Functions: |
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Hours, Minutes, Power Reserve, Small Seconds at 6, Outsize date |
| Crystal: |
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Sapphire Crystal |
| Case Diameter: |
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45.9 mm |
| Case Thickness: |
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15.9 mm |
| Caseback: |
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Sapphire Crystal Exhibition Back |
| Bezel Material: |
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18k Rose Gold |
| Bezel Function: |
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Fixed |
| Water Resistance: |
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30m / 100ft (suitable for splashing, light rain; unsuitable for swimming or diving) |
| Crown: |
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18k Rose Gold |
| Calendar: |
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Large two-digit date aperture at 10 |
| Power Reserve: |
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744-hour power reserve (31 days) |
| Additional Info: |
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The LANGE 31 is 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 Lange 31 is yet another example of A. Lange & Söhne's ability to redefine benchmarks in precision watchmaking. For an entire month, the mechanism assures the highest level of rate stability and rate accuracy. 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 emphasize 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 harmoniously balances the face.
A glance at the case back reveals another construction that is very rare in precision watchmaking the key-winding mechanism. It was explicitly designed for and matched to this watch. It allows a considerably larger winding transmission ratio than would be possible with a crown. So fewer revolutions are needed, and the energy can be built up faster and more conveniently. The key is inserted through an aperture in the sapphire-crystal caseback. 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 over-tightening 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.
The L034.1 manufacture movement in the LANGE 31 is a true power pack. In a space with a diameter of 37.3 millimetres and a height of 9.6 millimetres, it stores the energy needed to keep running non-stop for 31 days. Two crucial questions had to be answered by Lange's calibre engineers: how can so much energy be stored in a movement? And, just as important: how can this energy be delivered in a controlled manner? The energy storage function is handled by the large twin mainspring barrel - two stacked spring barrels, in fact, with an inside diameter of 25 mm. They contain the two mainsprings, each of which is 1,85 meters long – five to ten times as long as the springs of conventional mechanical wristwatches. When fully wound, their combined energy is equivalent to more than 3 joules. The torque delivered by the mainspring barrel has its maximum when the spring is fully wound and then declines perceptibly as the spring relaxes. This changes the rate parameters of the movement, especially in watches with large power reserve values. To eliminate this unwanted effect in the LANGE 31, the manufactory integrated a constant-force escapement. The main element of this mechanism is a pretensioned spiral spring that is quickly re-tightened on the fly at intervals of ten seconds. During the ten seconds that follow, the energy stored in the spring is delivered to the going train in a controlled manner. The torque output is virtually constant and powers the watch uniformly throughout 31 days.
Apart from its innovative technology, this movement stands out by virtue of its aesthetic appearance. It showcases everything that makes Lange watchmaking artistry so desirable: attractive traditional elements such as the screw balance, the whiplash precision index adjuster on the hand-engraved balance cock, and three screwed gold chatons. Not to mention the superb finish of all parts that is so typical for Lange. |
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Shipping, Warranty and Other Information |
- Usually ships within 2-3 business days, after our 24-48 hour credit verification has been performed following order placement. Gemnation ships via FedEx insured second-day air delivery, free. If you have selected expedited shipping or have a specific deadline for receipt, please e-mail us to ensure prompt delivery.
- Please note, that in order to keep the price of our luxury goods as low as possible, those items costing less than $200, will be shipped promptly via FedEx Ground, generally reaching you within the same period as Second Day Air.
- 10% restocking fee on all returned watches.
- Availability: Watches displayed as available may have already been purchased. Availability is updated as often as possible. If a watch displayed as available when the order was placed, but we no longer have the watch in stock, we will inform you of this fact and your credit card will not be charged.
- Packaging and Documentation: This watch is GUARANTEED 100% authentic, has ORIGINAL SERIAL NUMBERS and is shipped in FACTORY-FRESH, BRAND NEW, UNWORN condition with ALL manufacturer documentation and packaging. Package contains watch manufacturer's certificate of authenticity (if such certificate is applicable, and provided by the manufacturer), tags, stickers, boxes, and user manuals .
- Is this a corporate gift? Learn about our corporate gifting.
- Engraving: For a modest fee, you may have your watch custom laser-engraved. Add the watch of your choice to the cart and then you will be able to select the text and font for engraving. Learn about our engraving options.
- We sell luxury timepieces at considerably lower prices than the manufacturers list price. Gemnation is not an Authorized A Lange & Sohne Watch Dealer and is not affiliated with A Lange & Sohne. Authorized dealers are not permitted to discount or sell watches on the Internet. For this reason, we choose not to be authorized watch dealers for many of the brands that we sell. Since we are not authorized dealers for many of the watch manufacturers, we may be unable to ship the original watch manufacturers warranty. In all cases, however, we provide a 2 year Gemnation warranty (active from the date of purchase). If we can supply the original warranty we provide this information in the individual watch description.
- Warranty: A 2-year warranty is provided by Gemnation.com unless otherwise indicated in the above description. For warranty and servicing purposes, Gemnation utilizes a full-time Swiss-trained watchmaker who is licensed and trained to repair every brand and model of watch that we sell.
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