Important Collectors' Wristwatches, P...

New York, Mar 05, 2009

LOT 303

Challenge QP-S Cvstos, Geneve, "Challenge QP-S," No. 052. Made circa 2007. Fine and unusual, large, curved tonneau-shaped, self-winding, water-resistant, 18K pink gold wristwatch with perpetual calendar, phases of the moon, black plasma-treated movement, palladium and titanium alloy rotor and an 18K pink gold Cvstos double deployant clasp. Accompanied by the original box and papers.

C. Two-body, polished and brushed, the sides with recessed slotted decoration, hooded lugs with titanium screwed bars, titanium screwed-down crown, transparent case back with four screws, non-reflective sapphire crystals. D. Transparent with applied steel indexes, luminous dots and divisions for the minutes on a black outer reserve, Arabic 5-minute/second markers on the outer frame, subsidiary ring dials for the days of the month, of the week, the months, the leap year and for the phases of the moon. Luminous skeletonized epee hands, red subsidiary hands. M. Cal. 6510, black plasma-treated, 25 jewels, straightline lever escapement, monometallic balance, self-compensating flat balance spring, shock absorber, micrometer regulator, palladium and titanium alloy rotor. Dial and case signed. Dim. 41 x 54 mm. Thickness 16 mm.