20.12 mm x 4.82 mm (height) round plastic crystal with steel colour ring, genuine 063PZ5020 Omega® crystal, fits Omega® case REF 5660001, 5660003, 5660011
* 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.