Model: Submariner Reference: 5513 Date: Circa 1966 Movement: 26-jewel Cal.1520 automatic, free-sprung Gyromax balance Dial: Black with crazed varnish, 200m=660ft, luminous dot hour markers, baton quarters, gilt outer minute divisions, polished Mercedes hands with luminous inserts, centre seconds Case: Brushed and polished tonneau form, screw down back and shouldered crown, inside back date coded I.66, black calibrated bezel insert, No.1410504 Strap/Bracelet: Brushed and polished folded 7836 Oyster link Buckle/Clasp: Signed folding clasp Signed: Case, dial & movement Size: 39mm Accompaniments: Rolex service estimate and Guarantee dated October 1986, service pouch 注脚 Rolex introduced to the market reference 5513 in 1962, and produced the reference until the mid-1980's. The model is recognizable by its lack of date feature, allowing the dial to have a well-balanced design. Early examples of the 5513 featured a glossy black dial with gilt text, and in the mid-1960's, Rolex started producing the reference with a matte dial and white printing. These dials featured the depth rating with meters indicated first "200m=660ft", and towards the end of the 1960's, Rolex began producing dials with the depth rating that indicated feet first.