The way I interpret the hallmark and date letter seems to indicate London, 1794-95. The case makers trademark A M could be Angela Marson, Butchers Close Moorfields who was operating around that time. The name Edmonds, London, engraved on the movement, unfortunately has an initial I am unable to interpret. But it could be Jacob, John, or Charles Edmonds who operated in London in the last quarter of the 18th century. Our English brethren have a much better aptitude when it comes to interpreting case marks from English cases. However, dates on the case papers seem to be consistent with a late 18th century hallmark.
It would appear that this watch has a pair case. If so, and if the outer case exists, it might be interesting to compare the internal case stamps within both inner and outer case.
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