Important Modern and Vintage Timepieces

New York, Jun 08, 2011

LOT 51

Rolex - Ref. 16550 - Ivory Dial Explorer II Retailed by Tiffany & Co. Rolex, Oyster Perpetual Date, ?Explorer II, Superlative Chronometer, Officially Certified,? case No. R310954, Ref. 16550. Made circa 1987. Fine, two time zone, center seconds, self-winding, waterresistant, stainless steel wristwatch with date, 24-hour bezel and hand, independently adjustable 12-hour hand and a stainless steel Rolex Oyster bracelet. Accompanied by the original fitted box, warranty (now void) and instruction booklet.

C. Three-body, polished and brushed, screw-down case back and crown, graduated 24-hour bezel for the second time zone, Twinlock winding crown protected by the crown guard, sapphire crystal with cyclops lens. D. Ivory with applied luminous round, triangular and baton steel indexes, aperture for the date. Luminous steel skeleton hands. M. Cal. 3085, rhodium-plated, 27 jewels, straight-line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock absorber, self-compensating freesprung Breguet balance spring, Microstella regulating screws, hack mechanism. Dial, case and movement signed. Diam. 40 mm. Thickness 13 mm. Approx. overall length 195 mm.