Rolex. A Fine Stainless Steel and 18k Gold Automatic Wristwatch with Date and BraceletSigned Rolex, Oyster Perpetual Date, Submariner, 1000ft=300m, Superlative Chronometer, Officially Certified, Ref. 16613, Case No. L399761, Circa 1989Cal. 3135 automatic movement, 31 jewels, midnight blue dial, luminous dot, baton and dagger numerals, luminous hands, center seconds, magnified aperture for date, stainless steel tonneau-shaped water-resistant-type case, 18k gold revolving blue bezel calibrated for 60 units, 18k gold screw down crown, stainless steel screw back, stainless steel and 18k gold Rolex Oyster bracelet and deployant clasp, case, dial, and movement signed40mm diam.