ETA (ESA) 556
fits a friction tube 1
Omega® Case Back Gasket (Round O-Ring) OM-088NS5013 (replacement for 0880907N
The Chrono center second hands is both a seconds chrono counter as well as a 1/100 second counter
A Michel 426
Omega® Crown (Quartz with stem attached), calibres: 1450, case numbers: 591.02731, 591.0278, 591.02781, 591.0296 19mm Leather Watch Bands ETA (ESA) 556Omega Crown (Quartz with stem attached), calibres: 1450, case numbers: 591. 02731, 591. 0278, 591. 02781, 591. 0296 Omega Yellow Quartz Undercut Crown, (crown is supplied with stem and gasket mounted), diameter 2. 50 mm, complete length to end of pilot 8. 15 mm, fits Omega caliber 1450. Fits Omega case numbers: 59102731, 5910278, 59102781, 5910296 *Perrin Supply Ltd is independent of and not affiliated with or sponsored by Omega. Omega warranty does