Important Modern & Vintage Timepieces

Hong Kong, Jun 27, 2015

LOT 504

ROLEX REF. 16520 DAYTONA COLOR CHANGE DIAL STEEL Rolex, Oyster Perpetual, Superlative Chronometer, Officially Certified Cosmograph Daytona, case No. A226940, Ref. 16520. Made in 1988. Fine self-winding, water resistant to 100 m, stainless steel wristwatch with color change dial, round button chronograph, registers, tachometer and a stainless steel Rolex Oysterlock bracelet Ref. 78390.

Three-body, polished and brushed, screwed-down case back, buttons and crown, Triplock winding-crown protected by the crown guard, tachometer graduation on the bezel to 400 units per hour, sapphire crystal. Black with applied luminous white gold baton indexes, outer 1/5th seconds track, subsidiary dials for the seconds, the 12-hour and 30-minute registers. White gold bâton hands. Cal. 4030, rhodium-plated, 31 jewels, straight-line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock absorber, self-compensating free-sprung Breguet balance spring, Microstella regulating screws.