Important Collectors’ Wristwatches, P...

Geneva, Nov 16, 2008

LOT 158

Sympathie Bi-Retrograde Perpetual Calendar Chronograph Roger Dubuis, Horloger Genèvois, "Sympathie ? Bi-Retrograde Perpetual Calendar Chronograph Chronometer", No. 06/28, movement No. 73.Made in a limited edition of 28 pieces in 2005. Very fine and rare, "carré lobé", water-resistant, 18K white gold, "Bulletin d'Observatoire" chronometer wristwatch with square button chronograph, register, bi-retrograde perpetual calendar, moon phases and an 18K white gold Roger Dubuis buckle. Accompanied by fitted box,the certificate of origin, chronometer certificate and setting pin.

C. Three-body, solid, polished and brushed, transparent case back with 8 screws and etched crystal, correctors on the band, lapidated bezel, curved lugs, sapphire crystals. D. Black with painted white Arabic numerals, outer fifths of a second track, subsidiary dials at 12 for the months and the leap years, at 9 for the seconds and 3 for the 30-minute register, on the sides, sectors for the retrograde days of the week and of the month, aperture for the moon phases.White gold skeleton feuille hands.M. Cal. RD 5632, stamped with the Seal of Geneva Quality Mark, rhodium-plated, fausses cotes and oeil-de-perdrix decoration, 25 jewels, straightline lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating Breguet balance spring, swan neck micrometer regulator. Dial and movement signed, case hallmarked and numbered. Dim. 40 x 40 mm. Thickness 15 mm.