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Lot Essay
The present pink gold Perpetual Calendar ‘Terraluna’ is presented in excellent overall condition and is accompanied by the full set of accessories.
A remarkable technical wonder and formidable horological masterwork launched at SIHH in 2014, the Richard Lange Perpetual Calendar ‘Terraluna’ is a double-dialled timepiece with regulator-style meantime and calendar dial and, on the reverse, one of the most precise moon phase displays ever created. The 80-jewel three-quarter plate movement caliber L096.1 features twin barrels and Lange’s patented constant-force escapement which ensures an unfluctuating transmission of power regardless of whether the watch is fully wound or almost unwound. Every part is hand decorated and assembled, the balance cock is hand engraved.
The dial for the present pink gold Terraluna is made from solid silver. The front dial displays the hours, minutes and seconds in ‘regulator’ form, a style inspired from high-precision observatory clocks whereby the three basic time functions each have a separate dial. This form of display was historically used in observatories and for navigation because of the accurate and easily readable display of minutes and seconds. For the ‘Terraluna’ model, Lange and Söhne was inspired by the 1807 regulator made by Johann Heinrich Seyffert from the renowned timepiece collection of the Mathematics and Physics Salon in Dresden, Germany. The perpetual calendar displays comprise Lange’s signature outsize date, apertures for the days of the week, the months, leap-years and 14-day power reserve.
Through the sapphire crystal display back, the partially exposed movement features a stunning and highly complex patented orbital moon-phase display. Once correctly setup, it is accurate for an incredible 1058 years before correction by one day is necessary. In addition to the moon phases, the ‘Terraluna’ also displays the positions of the moon and sun as observed in the Northern Hemisphere.
This technically highly impressive and very elegant timepiece is without doubt one of the most desirable perpetual calendar watches of Lange’s recent production.
A remarkable technical wonder and formidable horological masterwork launched at SIHH in 2014, the Richard Lange Perpetual Calendar ‘Terraluna’ is a double-dialled timepiece with regulator-style meantime and calendar dial and, on the reverse, one of the most precise moon phase displays ever created. The 80-jewel three-quarter plate movement caliber L096.1 features twin barrels and Lange’s patented constant-force escapement which ensures an unfluctuating transmission of power regardless of whether the watch is fully wound or almost unwound. Every part is hand decorated and assembled, the balance cock is hand engraved.
The dial for the present pink gold Terraluna is made from solid silver. The front dial displays the hours, minutes and seconds in ‘regulator’ form, a style inspired from high-precision observatory clocks whereby the three basic time functions each have a separate dial. This form of display was historically used in observatories and for navigation because of the accurate and easily readable display of minutes and seconds. For the ‘Terraluna’ model, Lange and Söhne was inspired by the 1807 regulator made by Johann Heinrich Seyffert from the renowned timepiece collection of the Mathematics and Physics Salon in Dresden, Germany. The perpetual calendar displays comprise Lange’s signature outsize date, apertures for the days of the week, the months, leap-years and 14-day power reserve.
Through the sapphire crystal display back, the partially exposed movement features a stunning and highly complex patented orbital moon-phase display. Once correctly setup, it is accurate for an incredible 1058 years before correction by one day is necessary. In addition to the moon phases, the ‘Terraluna’ also displays the positions of the moon and sun as observed in the Northern Hemisphere.
This technically highly impressive and very elegant timepiece is without doubt one of the most desirable perpetual calendar watches of Lange’s recent production.