ROLEX REF. 16520 ZENITH DAYTONA MARK II IVORY
Rolex, Oyster Perpetual, Superlative Chronometer, Officially
Certified Cosmograph Daytona, case No. L507058, Ref. 16520. Sold
in April 1989.
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. 78360.
Accompanied by the original warranty and a 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.