20.00 mm x 1.50 mm (height) round mineral crystal, genuine 063TN5212 Omega® crystal, fits Omega® case REF 5660053, 5660054, 5660055, 7660804
* 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.