
- Movement
- Self-winding
- Size
- 41.9 mm
Overview
The Lange 1 Perpetual Calendar in a 41.9 mm case
The A. Lange & Söhne Lange 1 Perpetual Calendar, reference 345.036 E, in a 950 platinum case, 41.9 mm across and 12.1 mm high, with a black dial. Self-winding calibre L021.3 with perpetual calendar, moon-phase display and outsize date, on a black alligator leather strap with a platinum prong buckle.
This execution is in 950 platinum. The dial is black in solid silver, and the strap is black alligator leather with a platinum prong buckle.
Lange describes the calendar displays of the Lange 1 Perpetual Calendar as jumping precisely when they change, with a month ring running around the edge of the dial. The brand presents the combination as its own mechanical and conceptual approach to the perpetual calendar.
The movement is calibre L021.3, self-winding, with 621 parts and a reserve of 50 hours; the balance beats at 21,600 semi-oscillations an hour (3.0 Hz). Lange lists five functions: the outsize date, the day/night indicator, the moon-phase display, the day-of-week display and the perpetual calendar. The case is 12.1 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.
For collectors
The Lange 1 Perpetual Calendar is made in pink gold, white gold and platinum on this one calibre, in the same case size and height. The choice between those executions is one of case metal, dial and strap; the movement and the dimensions stay the same.
Key details
Design and engineering
- DialA black dial in solid silver.
- Calendar displaysLange describes the displays as jumping precisely, and the month ring as running around the periphery of the dial.
- Perpetual calendarListed with the outsize date, day/night indicator, moon-phase display and day-of-week display as the functions of calibre L021.3.
- Case950 platinum, 41.9 mm across and 12.1 mm high, with a sapphire glass case back and water resistance of 3 bar.
- Strap and buckleBlack alligator leather, closed with a 950 platinum prong buckle.
Calibre L021.3
- Self-winding
- Outsize date, day/night indicator, moon-phase display, day-of-week display and perpetual calendar
- 621 parts
- 21,600 semi-oscillations per hour (3.0 Hz)
- Power reserve 50 hours
The reference
Technical specifications
| Reference | 345.036 E |
|---|---|
| Collection | Lange 1 |
| Calibre | L021.3 |
| Movement | Self-winding |
| Functions | Outsize date, day/night indicator, moon-phase display, day-of-week display, perpetual calendar |
| Power reserve | 50 hours |
| Frequency | 21,600 semi-oscillations per hour (3.0 Hz) |
| Movement parts | 621 |
| Case dimensions | 41.9 mm |
| Case height | 12.1 mm |
| Case material | 950 platinum |
| Case back | Sapphire glass |
| Water resistance | 3 bar |
| Dial | Black |
| Strap | Black alligator leather |
| Clasp | 950 platinum prong buckle |
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