29.00 mm outside diameter, low profile plastic crystal, 26.50 mm opening diameter of the inside ring grey ring (Mido® colour 40), no minute track, “Ocean Star”, original vintage Mido® crystal
* H. & W. Perrin Company Limited is independent of and not affiliated with or sponsored by Mido®. Mido® warranty does not apply to parts supplied by H. & W. Perrin Company Limited.