Omega® Crown (Waterproof, Tap 0.90 mm), case numbers: 166.0277, 166.0280, 166.0281, 166.0282, 168.0075, 168.00752, 196.0249, 196.0280, 196.0281, 386.0820, 511.5001, 7447 Generic Crystals to fit Orient Genuine Rolex® rotor cover screw

Genuine Rolex® rotor cover screw

Material: Genuine IWC part 9003 (blue steel)

Gruen 835B

Ideal for small batches of jewellery

Omega® Crown (Waterproof, Tap 0.90 mm), case numbers: 166.0277, 166.0280, 166.0281, 166.0282, 168.0075, 168.00752, 196.0249, 196.0280, 196.0281, 386.0820, 511.5001, 7447 Generic Crystals to fit Orient Genuine Rolex® rotor cover screwOmega Crown (Waterproof, Tap 0. 90 mm), case numbers: 166. 0277, 166. 0280, 166. 0281, 166. 0282, 168. 0075, 168. 00752, 196. 0249, 196. 0280, 196. 0281, 386. 0820, 511. 5001, 7447 Omega Yellow Waterproof Crown, Square, diameter 3. 50 mm, fits tube 1. 60 mm, total height of crown 2. 30 mm, flush pipe, tap 0. 90 mm. Fits Omega case numbers: 1660277, 1660280, 1660281, 1660282, 1680075, 16800752, 1960249, 1960280, 1960281, 3860820, 5115001, 7447 *Perrin