Glycine Airman SST. SST-Super Sonic Transport. Caseback possibly depicts the Boeing 2707 which only got as far as a prototype before Government funding was pulled in 1971. Could also be the Tupelov Tu-144 on which development began in July 1963. To confuse things further the watch manual depicts Concorde on a couple of its pages. The Glycine Airman SST ran from 1967-1978. The one above is from 1969 fitted with the A. Schild Cal.1903. This went on until 1971 when the A. Schild Cal. 2063 was fitted. There was a final change in 1974 to the A.Schild Cal. 2163. This lasted until the demise of this model in 1978. It was pretty much the demise of Glycine in general with the Quartz crisis and other factors.