Rolex Pre-owned Datejust 36 Ref 16013 Blue Dial is a vintage automatic watch from 1983 featuring a blue tritium dial and two-tone stainless steel and 18K yellow gold construction. Condition: Good, but used — for its age it shows visible signs of wear on the case and bracelet. Includes Rolex service warranty card from 2010 and the original warranty certificate from October 1983. Key attributes: Blue | Stainless steel and 18K yellow gold | Automatic movement (Cal. 3035) | Running approx. +8 seconds/day at 285° amplitude | Date display | Jubilee bracelet with folding clasp | Bracelet with high stretch | Blue tritium dial | Baton hour indices | Fluted bezel | Date window | Dimensions & fit: Fits wrist sizes up to approx. 20.5 cm | Regular wrist fit | Composition & care: Stainless steel | 18K yellow gold | Tritium (dial luminescent material) | Service by a certified watchmaker recommended. Avoid prolonged water exposure and have seals checked before contact with water. Wipe with a soft cloth and store in a dry place.