Genuine Adec®, 23.00 x 19.80 mm flat mineral crystal with gold trim, Adec® crystal reference A54-89230, fits Adec® case reference 4-393938, 4-940938.
* 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.