Omega® Crown (Waterproof, Tap 1.00 mm), case numbers: 145.0013
Omega® Yellow Waterproof Divers Crown, square, diameter 6.30 mm, fits tube 2.50 mm, total height 4.20 mm, recessed pipe, tap 1.00 mm. Fits Omega® case number 1450013
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Omega®. Omega® warranty does not apply to parts supplied by H. & W. Perrin Company Limited. Using generic parts may devalue your watch.