Omega® Crown (Waterproof, Tap 1.20 mm), calibres: 420, steel o-ring case back gaskets fits Omega case number 191

fits Omega case number 191

part number 1634 fits Omega® 980

Excellent for use with tripoli and abrasive compounds

reverser - mounted to fit Jaeger LeCoultre® calibres: 880

crown side is an inside thread measuring 2

Omega® Crown (Waterproof, Tap 1.20 mm), calibres: 420, steel o-ring case back gaskets fits Omega case number 191Omega Crown (Waterproof, Tap 1. 20 mm), calibres: 420, steel Omega Steel Waterproof Crown to fit Omega caliber 420, diameter 5. 00 mm to fit tube 2. 00 mm, Tap 1. 20 mm, domed top. 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.