Martin-Baker is a British aviation company responsible for supplying 70% of the worlds air-forces with fighter ejection seat technology. The watch had to withstand the same rigorous testing programme as the ejection seats themselves including Live Ejection Testing, MFOS Crashworthy Testing, Extreme Temperature Endurance, Vibration Testing, Altitude Testing and Aircraft Carrier Deck Testing. This MBII design boasts a more contemporary styling of the numerals for a clean look. Its newly designed case back is inset with a bronze coloured military challenge coin, historically used to represent membership of a group of people or service on a specific tour of duty.