Sinns 756 watches are created to be exceptionally durable and protected from external influences this timepiece is equipped with valjoux 7750 automatic calibre that performs 28 800 vibrations per hour and has 25 bearing jewels one of the timepieces most prominent features is the extreme protection from magnetic influences the case is hardened through the use of sinns tegiment technology a dehumidifying capsule protects the dial from fogging the watch comes equipped with various functiona