Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon 1.00 mm Thick Flat Round Sapphire Crystal (39.0 mm to 40.0 mm) by PERRIN Sale $50.51 | / SKU CR-SPF10-7-39-0 39.0 mm - $50.51 39.5 mm - $50.51 40.0 mm - $50.51 39.0 mm 39.5 mm 40.0 mm Diameter (mm) Chevron down icon 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available This crystals are a scratch resistant crystals for high-end watches. This crystals have a polished top edge.