GS Replacement Acrylic Crystals for HAMILTON Watches New Old Stock for early models Click the Drop Down Menu for Crystal of Choice price is for one crystal of your choice Items are new old stock (unused in the original envelopes) but please note these envelopes show aging and storage wear. We also have the newer GS raised cylinder acrylic crystals that will fit some of these models. We also have mineral glass crystals listed for many of these models. shipped in a secure container