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Lot 2417 THE PROPERTY OF A DISTINGUISHED PRIVATE SWISS COLLECTOR
A. LANGE & SÖHNE. A FINE 18K GOLD AUTOMATIC PERPETUAL CALENDAR WRISTWATCH WITH MOON PHASES, 24 HOUR INDICATION AND BRACELET
SIGNED A. LANGE & SÖHNE, GLASHÜTTE I/SA, LANGEMATIK PERPETUAL MODEL, REF. 310.221, MOVEMENT NO. 28'409, CASE NO. 138'289, CIRCA 2007
Closed28 May 2018
Price Realised
HKD 275,000
More Information
Specialist note
The Langematik Perpetual is the world's first automatic wristwatch to feature a perpetual calendar, an oversized date and the patented zero reset mechanism allowing the calendar displays as well as the moon phase indication to be advanced either individually or collectively by depressing the calendar change button in the band.
Once correctly set, the date display remains accurate until the next secular year occurs: On 28 February 2100, it will need to be advanced by only one day. The moon phase mechanism is also stunningly accurate: after 122.6 years of uninterrupted operation, it deviates from synodic lunation by merely one day.
Lange's patented "zero-reset" mechanism simplifies the synchronization of the watch with a time signal. When the crown is pulled out, it automatically causes the seconds hand to jump to the 12 o'clock or "zero" position.
The Langematik Perpetual model is described and illustrated in A. Lange & Söhne - eine Uhrmacherdynastie aus Dresden by Reinhard Meis, Volume II, 2011 edition, p. 365, pl. 1165.
Once correctly set, the date display remains accurate until the next secular year occurs: On 28 February 2100, it will need to be advanced by only one day. The moon phase mechanism is also stunningly accurate: after 122.6 years of uninterrupted operation, it deviates from synodic lunation by merely one day.
Lange's patented "zero-reset" mechanism simplifies the synchronization of the watch with a time signal. When the crown is pulled out, it automatically causes the seconds hand to jump to the 12 o'clock or "zero" position.
The Langematik Perpetual model is described and illustrated in A. Lange & Söhne - eine Uhrmacherdynastie aus Dresden by Reinhard Meis, Volume II, 2011 edition, p. 365, pl. 1165.