Sinn watch 917 the rally bracelet sinns 917 rallye chronograph manages to combine effectively functionality and elegance the movement is protected from shock and magnetic influences sinns dehumidifying capsule is added to increase readability and to protect the mechanism the countdown bezel is one of the most prominent characteristics of the sinn 917 watch additional functionalities include a day and date window at 9 o clock transparent case back and scratch resistant sapphire crystal glas