Important Modern & Vintage Timepieces

Geneva, Mar 16, 2014

LOT 315

ROGER DUBUIS PERPETUAL CALENDAR, WHITE GOLD Roger Dubuis, Horloger Genèvois, "Sympathie Bi-Retrographe Perpetual Calendar Chronometer", No. 11/28, Ref. SY43 5710 0. Made in a limited edition of 28 pieces, circa 2002. Very fine, rare and complicated, "carré lobé", 18K white gold wristwatch with bi-retrograde perpetual calendar, week of the year indication, moon phases, leap-year indication and an 18K white gold Roger Dubuis deployant clasp. Accompanied by Roger Dubuis wooden fitted box, setting pin, Certificate of Origin and Bulletin d'Observatoire.

Three-body, solid, polished and brushed, transparent case back with 8 screws, correctors on the band and between the lugs, stepped bezel with faceted decoration, large curved lugs, screwed bars, sapphire crystals. Satiné silver and black with applied polished white gold baton arabic indexes, inner minute track, outermost ring for the weeks of the year indication numbered from 1-52, subsidiary dials at 6 for the months with aperture for the leap-year indication, aperture at 12 for the moon phases, on the sides, sectors for the retrograde days of the week and date. White gold skeleton feuille hour and minute hands, blued steel cathedrale sector hands. Cal. RD5610, stamped with the Seal of Geneva Quality Mark, rhodium-plated, fausses cotes and oeil de perdrix decoration, 21 jewels, straight-line lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating Breguet balance spring, swan neck micrometer regulator.