If you have the hessite speedy but want to see that beautiful movement this is the way Caseback Height: 2.5 mm (excludes threaded section) Materials: Hypoallergenic 316L Stainless Steel, Sapphire Glass, Polymer Crystal Gasket Water Resistance: 50m (Note: all other watch gaskets, such as those in the crown and pushers, must be properly maintained). Asking $80 shipped from nyc only to CONUS please include 3.5% PayPal g+s fee Shot of it installed here [https://imgur.com/a/CY8WVqI](https://imgur.com/a/CY8WVqI)