G-S Flexo MT110 Watch Crystal for Gruen Veri-Thin Sonata Tango

This is a vintage G-S Flexo watch crystal, still in its original paper envelope. It's specifically designed for Gruen Veri-Thin 'Sonata' and 'Tango' models, measuring 10.1 by 10.3. It's a great find if you're looking to restore a classic timepiece with an authentic part. New old stock.