Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon 1.50 mm Thick Flat Round Sapphire Crystal (37.0 mm to 38.5 mm) by PERRIN Sale $47.50 | / SKU CR-SPF15-6-37-0 37.0 mm - $47.50 37.5 mm - $47.50 38.0 mm - $47.50 38.5 mm - $47.50 37.0 mm 37.5 mm 38.0 mm 38.5 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.