Important Collectors’ Wristwatches, P...

Geneva, Nov 16, 2008

LOT 271

SteelWings Tourbillon No.1 Chopard, ?L.U.C., SteelWings Tourbillon, Chronometre, 9 Days?, No. 01/30, movement No. 1, case No. 1071511, Ref. 16/8963.Made in a limited series of 30 examples in 2004 for Antiquorum?s 30th anniversay. Extremely fine and very rare, 9-day going, stainless steel wristwatchwith visible one-minute tourbillon regulator, Variner balance, four co-axially stacked barrels, power-reserve indication and a stainless steel Chopard double deployant clasp. Accompanied by fitted box, certificate, COSC certificate, booklet and a loop.

C. Two-body, polished, inclined bezel, concave lugs, transparent back with 8 screws, sapphire crystals. D. Partially skeletonized with an inner graduated chapter with engraved radial Roman numerals, outer silver irng with applied luminous triangular indexes and minute division, power-reserve indication on the plate at 10, subsidiary dial for the seconds on the aperture for the tourbillon. Blued steel luminous skeleton dauphine hands, seconds hand mounted on the tourbillon carriage. M. Special edition of Cal. 1.024T ?Quattro?, ¾ plate with separate bridge for the escapement, rhodium plated, Cotes de Geneve decoration, 33 jewels in gold chatons, four mainspring barrels co-axially stacked in pairs, one-minute tourbillon regulator with three curved-arm cage, special ?Steel Wings? bridge, lateral lever escapement, four armed free-sprung Variner balance for exceptionally fine adjustment of the balance?s moment of inertia, adjusted to heat, cold, isochronism and 5 positions, self-compensating Breguet balance spring. Dial, case and movement signed. Diam. 40.5 mm. Thickness 11 mm.