Memovox stainless steel European Jumbo (37mm) screw back from late 1960s. All original. Case and dial both in very strong condition. Movement runs great but to the best of my knowledge has not been serviced in the last 4 years.
It is a Calibre 815 which does not have a date and was produced in far fewer numbers than the much more common Calibre 825 with a date.