Important Modern & Vintage Timepieces

Hong Kong, Feb 22, 2014

LOT 23

ROLEX REF. 16520 ZENITH DAYTONA STEEL Rolex, Oyster Perpetual, Superlative Chronometer, Officially Certified Cosmograph Daytona, case No. U479842, Ref. 16520. Made in 1997. Fine, self-winding, water resistant to 100 m, stainless steel wristwatch with round button chronograph, registers, tachometer and a stainless steel Rolex Oyster bracelet Ref. 78390. Accompanied by Rolex box.

Three-body, solid, 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. White with applied luminous white gold baton indexes, outer 1/5th seconds track, subsidiary dials for the seconds, the 12-hour and 30-minute registers. Luminous 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.