Omega crowns waterproof, dustproof, gold plated, and pusher crown for different models of vintage Omega watches. If you don't know the size you need, please e-mail us the case # which is printed inside the case back cover and we can check the model # for you. These crowns may look like yours, but it will not fit if it's not the right one. 22003 Dustproof Diameter 3.60mm Tap 10 22004 Dustproof Diameter 3.60mm Tap 10 22007 Dustproof Diameter 4.50mm Tap 10 22021 Dustproof Diameter 4.00mm Tap 10 DP4.5 Dustproof Diameter 4.50mm Tap 10 42012 Waterproof Diameter 5.0mm Tap 10 Tube 2mm thickness 2.8mm 42023 Waterproof Diameter 5.0mm Tap 10 Tube 2.5mm Thickness 2.8mm 42050-42052 Waterproof Diameter 4.40mm Tap 10 Tube 2mm Thickness 2.75mm case # 14775 166.002 166.028 1660155 135.0017 168.0123 135.016 136.017 166.049 1680065 366.832 .... 42056 Waterproof Diameter 5.0mm Tap 10 Tube 2mm thickness 2.8mm Case # 136.011 43041 Waterproof Diameter 4.75mm Tap 10 Tube 2mm 43041 with Female stem stem length 2.7mm Case #s LL6287, 6068, 6292, LL6590, 6610, 6639, 6644, 6658, 14725, 14730, 14742, 14743, 14745, 14750, 14765, 14770, 14775, 14780, 14910, 165.020, 165.025, 166.020, 166.0020, 166.020-20SP, 166.025, 168.020, 365.001, 365.800, 365.800-03, 366.001, 366.001-06, 135.0020, 14905, 14910, 14920, 14905, 2561 43280 De Ville Quartz push crown fits case #s 191.0044 196.0079 1960080 1960081 1960082 196.0177 .... 42082 Waterproof Crown Diameter 3.00mm Tap 10 Tube 1.60mm 42137 Ladies Constellation case # 396.1021 18K Gold 42123 for case numbers: 168.1501 168.1502 168.1503 168.1602 168.1603 196.1501 196.1502 196.1503 196.1526 42147 for case numbers: 168.1640, 196.1523, 168.1623, 168.1613, 168.1641, 196.1522, 168.1622