The Collection of a European Nobleman

Geneva, May 11, 2008

LOT 195

Golden Square - Perpetual Calendar Roger Dubuis, Horloger Genevois, "Golden Square - Perpetual Calendar, Bulletin d'Observatoire", No. 11/28, movement No. 914. Made in a limited edition of 28 pieces, sold on July 3, 2006. Very fine, large, curved square, self-winding, water-resistant, 18K pink gold wristwatch with perpetual calendar, moon phases and an 18K pink gold Roger Dubuis deployant clasp. Accompanied by the Certificate of Origin and chronometer certificate.

C. Two-body, solid, square and curved, polished and brushed, corrector on the band, transparent back with 8 screws, straight lugs with pink gold screwed bars, curved sapphire crystals. D. Matte silver with black-edged large mirrored gold radial Roman numerals, inner minute track, subsidiary guilloché dial for the date, apertures for the days of the week, the months, the moon phases and the leap year. Blued steel pear and epee hands. M. Cal. RD 5739, rhodium-plated, fausses cotes decoration, stamped with the Seal of Geneva Quality Mark, 25 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating flat balance spring, swan neck micrometer regulator, rotor with pierced pink gold ?RD? logo. Dial, case and movement signed. Dim. 40 x 40 mm. Thickness 12 mm.