ROLEX REF. 16523, DAYTONA STEEL AND GOLD
Rolex, "Oyster Perpetual, Superlative Chronometer, Officially
Certified, Cosmograph, Daytona," case No. X661039, Ref. 16523.
Made in 1991.
Fine, self-winding, water-resistant, stainless steel and 18K yellow
gold wristwatch with round button chronograph, registers,
tachometer, and a stainless steel and 18K yellow gold Oysterlock
Ref. 78363 bracelet. Accompanied by fitted box, warranty (now
void), booklets and hang tag.
Three-body, polished and brushed, screwed-down case back
and gold buttons and crown, Triplock winding crown protected
by the crown guard, tachometer graduation on the gold bezel to
400 units per hour, sapphire crystal.
Two-tone black and champagne with applied yellow gold
luminous baton indexes, subsidiary dials for the seconds, the
12-hour and 30-minute registers, outer minute/seconds division.
Luminous yellow gold baton hands.
Cal. 4030, rhodium-plated, oeil-de-perdrix decoration,
31 jewels, straight-line lever escapement, monometallic
balance adjusted to 5 positions and temperature, shock
absorber, self-compensating free-sprung Breguet balance
spring, Microstella regulating screws.