Important Collectors' Wristwatches, P...

New York, Mar 05, 2009

LOT 301

Tourbillon Challenge R 50 Cvstos, Geneve, "Tourbillon, Challenge R 50," No. 016 Ti. Made circa 2007. Fine and unusual, large, curved tonneau-shaped, water-resistant, titanium wristwatch with one-minute tourbillon regulator, black plasma-treated movement and a black rubber Cvstos strap with stainless steel double deployant clasp. Accompanied by a fitted box.

C. Two-body, polished and brushed, the sides with recessed slotted decoration, hooded lugs with titanium screwed bars, screwed-down crown, transparent case back with four screws, non-reflective sapphire crystals. D. Transparent with applied steel indexes and luminous dots on an outer black reserve, sector for the 3 x 20 seconds display at 6. Luminous polished steel épée hands. M. Cal. 016, black plasma-treated, 21 jewels, lateral lever escapement with one-minute flying tourbillon regulator, three arm red cage, monometallic balance with timing screws, adjusted to all positions, shock absorber, self-compensating flat balance-spring. Dial, case and movement signed. Dim. 50 x 58 mm. Thickness 17 mm.