LANGE 1 PERPETUAL CALENDAR
The LANGE 1 PERPETUAL CALENDAR is a timepiece for connoisseurs who appreciate the subtle differences. The self-winding watch is fully focused on its eponymous complication: Apart from the typical Lange outsize date, a retrograde day-of-the-week display and a leap-year indication, the watch features a peripheral month ring and a moon-phase display that also shows whether it is day or night. The newly developed model with a case diameter of 41.9 millimetres is available in pink gold with a grey dial made of silver or – in a limited edition of 150 watches – in white gold with a solid 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 was endowed with a newly developed winding mechanism. Its technical features include a unidirectionally 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.