Important Modern and Vintage Timepieces

Hog Kong, Feb 26, 2011

LOT 90

Roger Dubuis Single-Button Hommage Roger Dubuis, Horloger Genevois, ?Hommage Chronograph Single-Button, Bulletin d?Observatoire?, No. 17/28, movement No. 29, case No. 199980, Ref. H40 65 0. Sold on August 12th, 1999. Very fine and rare, water-resistant, 18K white gold chronometer wristwatch with single-button chronograph, register, tachometer and an 18K white gold Roger Dubuis deployant clasp. Accompanied by fitted box, certificate of origin, COSC certificate, an additional 18K white gold solid case back.

C. Two-body, solid, polished and brushed, screwed-down transparent case back, concave bezel, concave lugs, sapphire crystals, button at 2 to activate the chronograph function. D. Black with applied pink gold Arabic numerals and dart indexes, subsidiary seconds and 30-minute register dials outer minute and 1/5th seconds track, outermost tachometer scale. Pink gold feuille hands. M. Cal. RD 50, stamped with the Seal of Geneva Quality Mark, rhodium-plated, fausses cotes decoration, 16 jewels, and straightline lever escapement, monometallic balance with regulating screws adjusted to 5 positions, shock absorber, self-compensating blued steel Breguet balance spring, and swan-neck regulator. Dial, case and movement signed. Diam. 40 mm. Thickness 12 mm.