Sinn watch ezm 7 leather the mission timer ezm 7 with its colour coded bezel is easy to operate making it childs play for people using breathing protection apparatus to set and read off the relevant durations from csa to lpa the captive bezel can even be set when wearing gloves like on our diving watches we have designed the ezm 7 for use in the most difficult conditions it is especially resilient to the penetration of water and dust to scratches changes of temperature and the influen