According to Pieter Doensen's book, Mortima created these steel spiral bimetal thermometer compass wristwatches in 1956. I've seen a few others made by Continental.
This one has the original band with bark cut steel matching the case. If only it squirted poison gas, it might have been used in an early James Bond flick. Hmm, hey what's this button for anyway?...
Soon to come - post about the 1960's Gilbert Spymaster 007.
