Omega® Case Tube for Crown, case numbers: 136.018, 198.0001
Case Tube, Friction into the case 1.90 mm, crown side diameter 2.00 mm, total length 4.35 mm. Fits Omega® case numbers: 136018, 1980001
* 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.