Omega® Crown (Waterproof, with split post attached), yellow, total length 7.05 mm 773 Series Ronda Genuine Omega® coupling wheel

Genuine Omega® coupling wheel

Omega® Steel Waterproof Crown to fit Omega® caliber 420

Omega® 920

part number 1554 fits Omega® 750

8mm has an outer diameter of 8mm

Omega® Crown (Waterproof, with split post attached), yellow, total length 7.05 mm 773 Series Ronda Genuine Omega® coupling wheelOmega Crown (Waterproof, with split post attached), yellow, total length 7. 05 mm Omega Yellow Waterproof Crown with female post attached, square, diameter 5. 00 mm, fits tube 2. 00 mm, total length 7. 05 mm. Case numbers are unknown. *Perrin Supply Ltd is independent of and not affiliated with or sponsored by Omega. Omega warranty does not apply to parts supplied byPerrin Supply Ltd. Using generic parts may devalue your watch.