Important Collectors' Wristwatches, P...

Hong Kong, Jul 10, 2005

LOT 375

Roger Dubuis, horloger genevois, "Observatory Bulletin", Bi-Retrograde Calendar, No. 05/28. Made in a limited edition of 28 examples in 2000. Very fine and rare, "carré cambré", water-resistant, astronomic, 18K white gold gentleman's with bi-retrograde calendar, moon phases and an 18K white gold Roger Dubuis deployant clasp. Accompanied by the original fitted box and certificate.

C. Three -body, solid, polished and brushed, transparent caseback with 8 screws, stepped bezel, screwed white gold bars,sapphire crystals. D. White enamel with applied white gold dotindexes, sectors for the retrograde days of the week and theretro-grade days of the month, aperture for the moon phases.Faceted white gold "Alpha" hands. M. Cal. 5740, stamped withthe Geneva Quality Hallmark, rhodium-plated, ?fausses côtes?decoration, 29 jewels, straight line lever escapement,monometallic balance adjusted to 5 positions, shock-absorber,self-compensating flat balance-spring, micrometer regulator.Dial, case and movement signed.Dim. 35 x 35 mm. Thickness 10 mm.