Important Collectors’ Wristwatches, P...

Hong Kong, Apr 23, 2006

LOT 51

Ref. 16518, ?Cosmograph Daytona? Rolex, ?Oyster Perpetual, Superlative Chronometer, Officially Certified, Cosmograph Daytona?, Ref. 16518. Made circa 1990. Fine, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch, with round button chronograph, registers and tachometer, leather strap and 18K yellow gold Rolex Fliplock clasp.

C. Three-body, solid, polished and brushed, screwed down case back and chronograph buttons, "Triplock" winding?crown protected by the ?Crown Guard?, tachometer graduation on the bezel to 400 units per hour, sapphire crystal. D. Bicolor white and black with applied yellow gold Arabic numerals and indexes, subsidiary dials for the seconds, the 12-hours and 30-minute registers. Luminous yellow gold "Bâton" hands. M. Cal. 4030, 13''', rhodium-plated, 31 jewels, lever escapement, monometallic balance adjusted to 5 positions and temperature, shock-absorber, self-compensating Breguet balance-spring, Microstella regulating screws. Dial, case and movement signed. Diam. 40 mm. Thickness 13 mm.