This classical chronograph belongs to the sinn 103 range its dial has been designed for uncompromised readability this timepiece is equipped valjoux 7750 automatic calibre that performs 28 800 vibrations per hour and has 25 bearing jewels a day and date window is located at the 3 oclock mark additional features include an elapsed time bezel luminous hands and markers complete chronograph functions high and low pressure resistance transparent case back and scratch resistant sapphire crys