30.71 mm x 30.71 mm x 3.60 mm (height) plastic crystal with gold colour ring, genuine 063PX5259 Omega® crystal, fits Omega® case REF 1660190, 1660191, 166190, 166191, 3660835
* 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.