The Finnish watch company De Motu Watches Ltd was founded by an electronics engineer Valdemar Hirvela, who has long worked in the Finnish Air Force. For five years, he designed a mini-accelerometer (or «G-Meter»), which a watchmaker Stepan Sapraneva mounted into the watch. This is how the world's first wristwatch which is capable of measuring the overload that a pilot is exposed in flight. Watch w…