ROLEX REF. 16013, DATEJUST, BLACK DIAL AND DIAMOND INDEX Rolex, "Oyster Perpetual Datejust, Superlative Chronometer Officially Certified, case no. 7375380, Ref. 16013/16000. Made circa 1982. Fine, center seconds, self-winding, waterresistant, stainless steel and 18K yellow gold chronometer wristwatch with date and a stainless steel and 18K yellow gold Rolex "Jubilee" bracelet. Three-body, polished and brushed, screwed-down case back and gold crown, fl uted bezel, crystal with cyclops lens. Black, applied diamond indexes and luminous dots, aperture for the date. Luminous yellow gold baton hands. Cal. 3035, rhodium-plated, 27 jewels, straight-line lever escapement, monometallic balance adjusted to 5 positions and temperature, shock absorber, self-compensating freesprung Breguet balance spring, Microstella regulating screws, hack mechanism. Dial, case and movement signed. Diam. 36 mm. Thickness 13 mm. Approx overall length 185 mm.