20.62 mm x 4.15 mm (height) round plastic crystal, steel colour ring with calendar loupe, genuine 063PZ5108L Omega® crystal, fits Omega® case REF 5680001, 5680002, 5680011, 6680001, 6680002, 7680800, 7680802
* 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.