Watches that are part of the sinn 756 range brag exceptional durability and protection from external influences this timepiece is equipped with valjoux 7750 automatic calibre that performs 28 800 vibrations per hour and has 25 bearing jewels the case is especially hardened through the use of sinns tegiment technology a dehumidifying capsule is added as well a date window is positioned at the 4 oclock mark additional functionalities include a second time zone luminous dial elements nick