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LANGE 1 PERPETUAL CALENDAR

Developed with the passion for doing things differently

The new LANGE 1 PERPETUAL CALENDAR is totally focused on the eponymous complication. Its integration into the prominent dial layout of the LANGE 1 was made possible thanks to a peripheral month ring created especially for this design. The month display is complemented with the Lange outsize date, a retrograde day-of-week display and a leap-year indication. The moon-phase display with an integrated day/night indicator is a further special feature. The LANGE 1 PERPETUAL CALENDAR has a case diameter or 41.9 millimetres and is available in pink gold and – in a 150-watch limited edition – in white gold with a pink-gold dial.

The self-winding movement L021.3 is A. Lange & Söhne’s 67th manufacture calibre. It is based on the calibre L021.1 of the LANGE 1 DAYMATIC and has been endowed with a newly developed winding mechanism. Its technical features include a unidirectional winding rotor in 21-carat gold with an additional centrifugal mass in platinum, a power reserve of 50 hours and a cam-poised balance that runs with a frequency of 21,600 semi-oscillations per hour.

Discover the models

2 Models of the LANGE 1 PERPETUAL CALENDAR

Movement L021.3

Number of movement parts

621

Number of rubies

63

Number of screwed gold chatons

5

Power reserve

50 hours when fully wound

Oscillation system

Frequency: 21600 semi-oscillations per hour

Beat-adjustment system: Screw balance

Movement measures

Diameter: 35.8 mm; height: 8.8 mm