102nd Auction

2020/6/29

Lot 542

Zenith, Le Locle, Swiss, "Academy Christophe Colomb Equation of Time", Movement No. 355823, Case No. 11/75, Ref. 18.2220.8808/01.C631, Cal. El Primero 8808, 45 mm, circa 2012
An extraordinary wristwatch in mint condition, with tourbillon with gyroscopic cage, which ensures the horizontal position of the regulating device - limited edition no. 11 of 75 pieces - with original box, operating instructions, guarantee card and setting pin
Case: 18k rose gold, screwed on glazed back, original 18k rose gold deployant clasp. Dial: two-tone silvered, engine-turned.
The gyroscopic "Gravity Control" module is one of the most important horological inventions of the 21st century. Zenith presented and patented their gyroscopic "Gravity Control" module after five years of intensive research work. It constitutes a revolutionary innovation which allowed the model "Academy Christophe Colomb Equation of Time" to win the most prestigious horological prize in the world - the "Grand Prix d'Horlogerie de Genève" - in the category "Grand Complications" in 2011.
Source: Zenith-Watches.com
The creation of this unique timepiece - its functionality pushing the boundaries of a tourbillon even - was inspired by the early days of the company when Zenith used gimbals in their marine chronometer. This novelty system ensures that escapement and balance are in a level position at all time, which guarantees maximum precision on the wrist. The equation of time functionality calculates the minutes that are to be subtracted from or added to mean solar time to obtain apparent solar time and displays them in a fan-shaped register at 9 o’clock. A cam disk on the back in the shape of an analemma engineers the display of the time equation as soon as the current month is set via the corresponding corrector button.

Sold

estimated
75.000100.000 €
Price realized
93.800 €