Important Modern and Vintage Timepieces.

Geneva, Nov 13, 2010

LOT 299

Onsa, Swiss, ?Super-Automatic, 30-Rubis?, case No. 1156-6184. Made in the 1960s. Fine and rare, self-winding, center seconds, 18K pink gold wristwatch with triple date and moon-phases.

c. Three-body, solid, polished and brushed, inverted bezel, oversized concave lugs, correctors on the band, snap-on case back. D. Silver with applied pink gold faceted indexes, outer dot minute/seconds divisions, inner black graduation for the date, apertures for the day of the month, the month and the moon phases. Pink gold dauphine hands, steel with red tip hand for the date. m. Cal. 693, copper colored, 30 jewels, straight line lever escapement, monometallic balance, shock absorber, self-compensating flat balance spring, index regulator. Dial, case and movement signed. Diam 35 mm Thickness 13 mm.