- Movement
- Manually wound
- Size
- 39 mm
Overview
The Datograph in a 39 mm case
The A. Lange & Söhne Datograph, reference 403.031, in an 18-carat pink gold case, 39 mm across and 12.8 mm high, with a black dial. Manually wound calibre L951.1 with outsize date and chronograph, on a brown alligator leather strap with a pink gold prong buckle.
A. Lange & Söhne no longer makes this reference.
The movement is calibre L951.1, manually wound, with 405 parts and a reserve of 36 hours; the balance beats at 18,000 semi-oscillations an hour (2.5 Hz). Lange lists the outsize date and the chronograph as its functions. The case is 12.8 mm high, water resistant to 3 bar, with a sapphire glass case back. The strap is alligator leather, closed with a prong buckle in the case metal.
Key details
Case material18-carat pink gold
MovementL951.1, manually wound
CollectionSaxonia
Calibre L951.1
- Manually wound
- Outsize date and chronograph
- 405 parts
- 18,000 semi-oscillations per hour (2.5 Hz)
- Power reserve 36 hours
The reference
Technical specifications
| Reference | 403.031 |
|---|---|
| Collection | Saxonia |
| Calibre | L951.1 |
| Movement | Manually wound |
| Functions | Outsize date, chronograph |
| Power reserve | 36 hours |
| Frequency | 18,000 semi-oscillations per hour (2.5 Hz) |
| Movement parts | 405 |
| Case dimensions | 39 mm |
| Case height | 12.8 mm |
| Case material | 18-carat pink gold |
| Case back | Sapphire glass |
| Water resistance | 3 bar |
| Dial | Black |
| Strap | Brown alligator leather |
| Clasp | 18-carat pink gold prong buckle |
| Status | Discontinued — A. Lange & Söhne no longer makes this reference |
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