Important Modern & Vintage Timepieces

Geneva, May 10, 2015

LOT 131

ROLEX REF. 18078 DAY-DATE BARK DIAMOND BEZEL AND HARDSTONE DIAL YELLOW GOLD Rolex, "Oyster Perpetual, Day-Date, Superlative Chronometer Officially Certified", Case No. A 560524, Ref. 18078/18200. Made in 1999. Very fine and very rare, center-seconds, self-winding, water-resistant, 18K yellow gold and diamond wristwatch with day and date with an 18k yellow gold bark president bracelet.

Three-body, solid, polished and brushed, screw-down case back and crown, textured bark and diamond bezel, sapphire crystal with cyclops lens. Hardstone with applied yellow gold roman indexes, luminous dots, outer minute/seconds track, aperture for the day of the week and quick-set date. Luminous yellow gold baton hands. Cal. 3055, rhodium-plated, oeil-de-perdrix decoration, 27 jewels, straight line lever escapement, monometallic balance adjusted to 5 positions and temperature, shock absorber, self-compensating Breguet balance spring, Microstella regulating screws, hack mechanism.