- Movement
- Manually wound
- Size
- 41.9 mm
Overview
The 1815 Rattrapante Perpetual Calendar in a 41.9 mm case
The A. Lange & Söhne 1815 Rattrapante Perpetual Calendar, reference 421.025FE, in a 950 platinum case, 41.9 mm across and 14.7 mm high, with an argenté dial. Manually wound calibre L101.1 with chronograph, perpetual calendar and moon-phase display, on a black alligator leather strap with a platinum deployant buckle.
The 1815 Rattrapante Perpetual Calendar combines a chronograph-rattrapante with a perpetual calendar, which Lange describes as classic complications in a wristwatch. It is made on one manually wound calibre.
The movement is calibre L101.1, manually wound, with 631 parts, a reserve of 42 hours and a balance beating at 21,600 semi-oscillations an hour (3.0 Hz). Lange lists the power-reserve indicator, moon-phase display, chronograph, day-of-week display, perpetual calendar and analogue date. The case is 14.7 mm high, water resistant to 3 bar, with a sapphire glass case back. The strap is alligator leather, closed with a deployant buckle in the case metal, and the lug width is 20 mm.
Key details
Design and engineering
- DialAn argenté dial in solid silver.
- Chronograph-rattrapanteCombined by Lange with the perpetual calendar on calibre L101.1; the chronograph is the listed function.
- Perpetual calendarListed with the day-of-week display, the analogue date and the moon-phase display, and with the power-reserve indicator for a reserve of 42 hours.
- Case950 platinum, 41.9 mm across and 14.7 mm high, with a sapphire glass case back and water resistance of 3 bar.
- Strap and buckleBlack alligator leather, 20 mm between the lugs, closed with a 950 platinum deployant buckle.
Calibre L101.1
- Manually wound
- Power-reserve indicator, moon-phase display, chronograph, day-of-week display, perpetual calendar and analogue date
- 631 parts
- 21,600 semi-oscillations per hour (3.0 Hz)
- Power reserve 42 hours
The reference
Technical specifications
| Reference | 421.025FE |
|---|---|
| Collection | 1815 |
| Calibre | L101.1 |
| Movement | Manually wound |
| Functions | Power-reserve indicator, moon-phase display, chronograph, day-of-week display, perpetual calendar, Analog date |
| Power reserve | 42 hours |
| Frequency | 21,600 semi-oscillations per hour (3.0 Hz) |
| Movement parts | 631 |
| Case dimensions | 41.9 mm |
| Case height | 14.7 mm |
| Case material | 950 platinum |
| Case back | Sapphire glass |
| Water resistance | 3 bar |
| Dial | Argenté |
| Strap | Black alligator leather |
| Clasp | 950 platinum deployant buckle |
| Distance between lugs | 20 mm |
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