Sinn watch ezm 7 rubber ezm 7 mission timer by sinn was originally designed for usage in firefighting and rescue mission it is easy to read and operate the watch is designed for usage in strenuous conditions it is scratch resistant resilient to dust and water penetration protected from magnetic influences and temperature resistant a date window is positioned at the 4 o clock mark various complications have been added including a second time zone captive key operation bezel with minute rat