Sinn Spezialuhren has designed the Mission Timer (EZM) 7 S for use in the toughest conditions – it is particularly resilient to the penetration of water and dust, to scratches, temperature change and the influence of magnetic forces. Thanks to its colour-coded rotating bezel, the EZM 7 S is easy to operate, making it child’s play for people using breathing protection apparatus to set and read off key durations – from CSA to LPA. A special limited edition of 300 EZM 7 S timepieces is being produced, each with an engraved limited-edition number on the case back.