26.70 mm x 26.70 mm plastic, C-shape, flat crystal, Timex® REF 23-327904, fits: 1977 Timex® M-23 Cavatina Models: 524101
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Timex®. Timex® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.