- Movement
- Manually wound
- Size
- 41.9 mm
Overview
The Grand Lange 1 in a 41.9 mm case
The A. Lange & Söhne Grand Lange 1, reference 115.031, in an 18-carat pink gold case, 41.9 mm across and 11 mm high, with a grey dial. Manually wound calibre L901.2 with outsize date and power-reserve indicator, on a black alligator leather strap with a pink gold prong buckle.
A. Lange & Söhne no longer makes this reference. This execution has a grey dial and a black alligator leather strap with a pink gold prong buckle.
The movement is calibre L901.2, manually wound, with 365 parts and a reserve of 72 hours; the balance beats at 21,600 semi-oscillations an hour (3.0 Hz). Lange lists the outsize date and the power-reserve indicator as its functions. The case is 11 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
Calibre L901.2
- Manually wound
- Outsize date and power-reserve indicator
- 365 parts
- 21,600 semi-oscillations per hour (3.0 Hz)
- Power reserve 72 hours
The reference
Technical specifications
| Reference | 115.031 |
|---|---|
| Collection | Lange 1 |
| Calibre | L901.2 |
| Movement | Manually wound |
| Functions | Outsize date, power-reserve indicator |
| Power reserve | 72 hours |
| Frequency | 21,600 semi-oscillations per hour (3.0 Hz) |
| Movement parts | 365 |
| Case dimensions | 41.9 mm |
| Case height | 11 mm |
| Case material | 18-carat pink gold |
| Case back | Sapphire glass |
| Water resistance | 3 bar |
| Dial | Grey |
| Strap | Black alligator leather |
| Clasp | 18-carat pink gold prong buckle |
| Status | Discontinued — A. Lange & Söhne no longer makes this reference |
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