Description
The A. Lange & Söhne Lange 31 (Reference 130.032F) stands as one of the most remarkable achievements in contemporary watchmaking, representing the culmination of German engineering excellence and traditional craftsmanship. This exceptional timepiece showcases what’s possible when horological ambition meets technical innovation.
Technical Specifications
Movement Specifications
- Caliber: Manufacture caliber L034.1
- Movement Type: Manual-winding mechanical
- Components: 406 individual parts
- Jewels: 62 jewel bearings
- Power Reserve: 31 days (744 hours)
- Frequency: 21,600 semi-oscillations per hour
- Plates and Bridges: Made of untreated German silver
Case and Physical Specifications
- Case Material: 950 Platinum
- Case Diameter: 45.9mm
- Case Thickness: 15.9mm
- Crystal: Domed sapphire crystal with anti-reflective coating on both sides
- Case Back: Sapphire crystal display back
- Water Resistance: 30 meters (3 bar)
- Weight: Approximately 230 grams
Revolutionary Power Reserve System
The watch’s defining feature is its unprecedented 31-day power reserve, achieved through several groundbreaking innovations:
- Twin Mainspring Barrels: Two stacked mainspring barrels with springs measuring 1.85 meters each
- Constant-Force Escapement: Patented mechanism ensuring stable amplitude throughout the entire power reserve
- Winding Mechanism: Special key-operated crown winding system with torque limiter
- Power Reserve Indicator: Precise month-long power reserve display with subsidiary dial
Dial and Display Features
The dial showcases multiple sophisticated elements:
- Dial Material: Solid silver with argenté finish
- Hour Markers: Applied platinum indices
- Hands: Handcrafted platinum hands for hours and minutes
- Date Display: Oversized date window at 3 o’clock
- Power Reserve: Dedicated indicator between 7 and 8 o’clock
- Subsidiary Seconds: Small seconds dial at 6 o’clock
Movement Architecture and Finishing
The L034.1 movement exemplifies the highest standards of Saxon watchmaking:
- Three-Quarter Plate: Traditional German silver construction
- Hand Engraving: Balance cock with floral pattern
- Finishing Techniques:
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- Hand-chamfered edges
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- Glashütte ribbing
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- Perlage on base plate
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- Gold chatons secured by thermally blued screws
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- Mirror-polished steel parts
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Special Engineering Solutions
Several innovative features ensure reliable operation:
- Patented Safety System: Prevents overwinding of the mainsprings
- Key-Based Winding: Separate winding key system for efficient power transfer
- Zero-Reset Function: For precise time setting
Limited Production and Market Position
As one of A. Lange & Söhne’s most complex timepieces, the Lange 31 is produced in extremely limited quantities, with annual production estimated at less than 50 pieces. This exclusivity, combined with its technical sophistication, positions it as one of the most prestigious watches in the haute horlogerie segment.
Investment Considerations
The Lange 31 represents a significant investment opportunity due to several factors:
- Rarity: Extremely limited production numbers
- Materials: Use of precious platinum for case construction
- Technical Innovation: Multiple patented mechanisms
- Brand Heritage: A. Lange & Söhne’s reputation for excellence
Service and Maintenance
The complexity of the movement requires specialized service:
- Service Interval: Recommended every 5-7 years
- Service Centers: Only authorized A. Lange & Söhne service centers
- Documentation: Complete set includes original papers, warranty card, and presentation box
Conclusion
The A. Lange & Söhne Lange 31 Reference 130.032F represents the pinnacle of mechanical watchmaking, combining unprecedented power reserve capabilities with exceptional finishing and technical innovation. It stands as a testament to what’s possible in modern haute horlogerie while maintaining traditional craftsmanship values.
