![1.50 mm Magnifying Crystal (38.5 mm to 44.5 mm)](http://perrinwatchparts.com/cdn/shop/products/CR-MAGNIFY15_6b23f996-72ae-4d09-a96a-1a8f1c9f63cc_300x61.jpg?v=1684873508)
Domed top and flat bottom – aka Single Dome - approximate thickness at center is 3.00 mm. This crystal gives a domed look without the need for hand clearance and adds a slight magnification to the dial. This crystal is finished with a polished top edge.