G-S Flexo MT360-17 Watch Crystal

This is a vintage G-S Flexo watch crystal, still in its original paper envelope. It's a model MT360-17, specifically sized at 25.5 by 18.3 mm. These were designed to fit various vintage watch cases from brands like Waltham, Longines, and Wadsworth. It's a great find if you're doing a restoration on a mid-century timepiece and need an authentic replacement part. New old stock.