Unlikely to have posed a threat to established makers of high-quality lathes for watchmakers such as G.Boley, Lorch and Wolf Jahn, this little model from an unknown maker was just 6 inches long and likely to have been built in the period 1918 to 1930. Of a very simple, lightweight Geneva pattern with a round bed with a flat along one side, its construction appears to have been, in watch-lathe terms, almost crude and was obviously intended to meet the needs of more impecunious owners.
Completely bereft of any maker's mark, it's origin is unknown, though as the lathe was found in England it may well have originated there. 
Other examples of lathes for watch and clock makers by unknown makers include:
http://www.lathes.co.uk/unknown43
http://www.lathes.co.uk/unknown52
http://www.lathes.co.uk/unknown53
http://www.lathes.co.uk/unknown55
http://www.lathes.co.uk/unknown66
http://www.lathes.co.uk/unknown77
http://www.lathes.co.uk/unknown85
http://www.lathes.co.uk/unknown92
http://www.lathes.co.uk/unknown95
http://www.lathes.co.uk/unknown96
http://www.lathes.co.uk/unknown97