ROLEX REF. 16523 DAYTONA STEEL AND GOLD
Rolex, "Oyster Perpetual, Superlative Chronometer, Officially
Certified, Cosmograph, Daytona," case No. L718855, Ref. 16523.
Made in 1989.
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 a box and warranty and booklet.
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.