![1.50 mm Magnifying Crystal (45.5 mm to 50.0 mm)](http://perrinwatchparts.com/cdn/shop/products/CR-MAGNIFY15_806f985d-bb3e-4f63-afa5-c019c5022812_300x61.jpg?v=1684873510)
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.