Rolex brand Model (Watch) Datejust 36 Reference number 16233 Automatic winding Case Material Gold/Steel Strap material Gold/Steel 1990s Condition Excellent (second-hand, no or barely visible signs of wear and tear) Kit original Rolex warranty documents and Rolex service carried out in 2011 Automatic winding Case Material Gold/Steel Diameter 36 mm Waterproof 10 ATM Bezel material Yellow gold Glass Sapphire crystal Blue dial Numbers on dial Without numbers Strap Strap material Gold/steel Strap colour Gold/Steel Folding clasp Clasp material Steel