Ref. 16518, 18K gold Cosmograph Daytona, Retailed by Tiffany & Co. Rolex, “Oyster Perpetual, Superlative Chronometer, Officially Certified, Cosmograph Daytona,” Ref. 16518. Made in the early 1990s. Fine, self-winding, water-resistant, 18K yellow gold wristwatch with round button chronograph, registers, tachometer and an 18K yellow gold Rolex deployable clasp.
C. Three-body, solid, polished and brushed, screwed-down case back, crown and 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 gold Arabic numerals and luminous yellow gold baton indexes, subsidiary dials for the seconds, the 12-hour and 30- minute registers. Luminous yellow gold baton hands.
M. Cal. 4030, rhodium-plated, oeilde- perdrix decoration, 31 jewels, straight line lever escapement, monometallic balance adjusted to 6 positions, shock absorber, self-compensating free-sprung Breguet balance spring, Microstella regulating screws. Dial, case and movement signed. Diam. 40 mm. Thickness 13 mm.
Courtesy of Antiquorum