35.80 mm x 25.70 mm plastic, Y-shape, cylinder type crystal, Timex® REF 23-927907, fits: 1977 Timex® M-23 Cavatina Models: 505101, 505201, 1976 M-23 Cavatina Models: 505101, 505201, 1975 Timex® M-23 Cavatina Models: 50510, 50520
* 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.