Genuine Adec®, 25.00 x 25.00 mm flat mineral crystal with gasket, Adec® crystal reference A54-99315, fits Adec® case reference 4-932141.
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Adec®. Adec® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.