Genuine Adec®, 18.12 x 16.09 mm flat mineral crystal, Adec® crystal reference A54-13445G, fits Adec® case reference 4-394194.
* 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.