![4.00 mm Thick Flat Round Mineral Crystal (25.0 mm to 35.0 mm)](http://perrinwatchparts.com/cdn/shop/products/CR-FT400_SERIES_3055f46f-d7ca-4aed-aaf4-ef7d57d96b73_300x114.jpg?v=1684873452)
4.00 mm round mineral crystals can be fitted into a gasket. Can be cemented directly into the seat of the bezel but not recommended. This crystal is finished with a polished top edge.
4.00 mm round mineral crystals can be fitted into a gasket. Can be cemented directly into the seat of the bezel but not recommended. This crystal is finished with a polished top edge.