G-S Flexo T595 Watch Crystal for Gruen

This is a vintage G-S Flexo watch crystal, specifically model T595. It's designed for Gruen watches and measures 20.4 by 20.4 mm. It comes in its original paper envelope, which has some age-related wear, but the crystal inside is unused. These are great for restoring older timepieces to their original look. New old stock.