30.62 mm x 4.00 mm (height) round plastic crystal with steel colour ring, genuine 063PZ5208 Omega® crystal, fits Omega® case REF 1660231, 1980029
* 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.