Sapphire Box Crystal for 38.5mm Seiko Cocktail Time Watches #Cocktail-BX-38.5

This is an after-market box sapphire crystal that you can use to mod and upgrade your 38.5mm Seiko Cocktail series watch.The crystal is the same size as the factory installed crystal. It has inner blue AR. It can be installed on Seiko SRPE41, 43, 45. Fits Seiko case codes 4R35-04A0.  If your watch is not listed, it will fit Seiko Presage models with a box Hardlex crystal that have a 38.5mm case diameter.

Note: This is a box crystal, which is more complex to manufacture than a domed crystal. The crystal gets its name from the sharp rise of the crystal at its outer edges. The crystal is held in place with adhesive, it is not a press fit. Professional installation is recommended.

If you are looking for a crystal for the larger 40.5mm Seiko Presage Cocktail Time, such as SRPB41, please see this product.