3012. 3012Y Rolex. A fine 14K gold automatic wristwatch Rolex. A fine 14K (585) yellow gold automatic wristwatch. Model: Oyster perpetual Bubbleback Reference: 3131 Date: Circa 1930 Movement: Jewelled automatic Bubbleback, No.90241 Dial: Rose champagne, black Arabic numeral hour markers, black outer minute divisions, running seconds at 6, blued steel hands Case: Brushed and polished tonneau form, screw down back and crown, textured bezel Strap/Bracelet: Brown alligator leather Buckle/Clasp: Gold plated buckle Signed: Case, dial & movement Size: 32mm Weight: 46,08g