Only Watch Auction
Monaco, Sep 20, 2007
Chopard ?L.U.C. Chrono One Prototype? Fleurier et Genève, Prototype No. 1 of 2.
The case: 18ct white gold, round, down turned lugs, anti-reflective sapphire crystal,transparent case back secured by screws, water-resistant to 30 m, rectangular pushers activating the chronograph functions. Diameter: 42mm, thickness: 14.20mm Alligator strap with a folding clasp in 18ct white gold. The movement: Calibre ?L.U.C 10CF?, integrated double-pusher, column wheel, chronograph movement, Chronometer (COSC) certified, rhodium plated, ?Côtes de Geneve? decoration, 45 jewels, bi-metallic four-arm Variner® balance, selfcompensating balance spring, frequency 4 HZ or 28?800 VPH, Incabloc shock absorber, straight line lever escapement, 60-hour power reserve. Diameter: 28.80mm, thickness: 7.60mm. The case: 18ct white gold, round, down turned lugs, anti-reflective sapphire crystal,transparent case back secured by screws, water-resistant to 30 m, rectangular pushers activating the chronograph functions. Diameter: 42mm, thickness: 14.20mm Alligator strap with a folding clasp in 18ct white gold. The dial and the hands: ?Guilloche soleil? two-tone (black and dark grey) dial, applied Arabic indexes, outer 60-second division, sapphire crystal permanent-second, 30-minute and 12- hour counters. Date aperture at 6 o?clock. Luminous rhodium plated ?Dauphine? hands. Specific features of the ?L.U.C Chrono One?: ? Integrated double-pusher column-wheel chronograph with fly-back function (may be reset at any time while it is running by activating a single pusher). ? ?Permanent-second reset? function, combined with a movement stop mechanism. Very useful for an accurate time setting (patent pending). ? The reset function operates by a lever that pivots three supple hammers, enabling optimal reset of the three counter hands (patent pending). ? The self-winding mechanism ensures winding in both rotation directions of the oscillating weight (which is pivoted on a ceramic ball-bearing mechanism). It comprises a unidirectional gearing device to avoid energy loss and to guarantee optimal winding speed (patent pending). ? 60-hour power reserve ? The ?start-stop? function is activated by means of clamps operating in conjunction with vertical coupling. ? Fast date adjustment allows the wearer to make a one-day correction per half-turn of the winding-stem. ? The 30-minute counter is semi-instantaneous. ? The 12-hour counter is semi-instantaneous in terms of its function, but dragging for read-off. ? The date is semi-instantaneous and appears through a dial window at 6 o?clock. ? The regulating organ comprises a balance-cock with 2 points of support, thereby ensuring optimal stability. ? The Variner® balance with a high moment of inertia ensures a precise rate in order to successfully pass the COSC tests and earn the title of ?Chronometer?.
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Case: 1 |
As new |
Movement: 1 |
As new |
Dial: 1 |
As new |