Important Collector's Wristwatches, P...

Geneva, Dec 02, 2003

LOT 59

Roger Dubuis, horloger genevois, "Observatory Bulletin", Bi-Retrograde Calendar, No. 08/28. Produced 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 a fitted box, certificate, an additional solid 18K white gold case back and setting pin.

C. three -body, solid, polished and brushed, transparent case back with 8 screws, stepped bezel, screwed white gold bars, sapphire crystals. D. white enamel with applied white gold dot indexes, sectors for the retrograde days of the week and the retro- grade days of the month, aperture for the moon phases. Faceted white gold "Alpha" hands. M. Cal. 5740, stamped with the Geneva Quality Hallmark, rhodium-plated, ‘fausses côtes’ decoration, 29 jewels, straight line lever escapement, monometallicalance adjusted to 5 positions, shock-absorber, self-compen- sating flat balance-spring, micrometer regulator. Dial, case and movement signed. Dim. 35 x 35 mm.