This one has sterling silver hallmarks from Birmingham dating it to 1889. The case maker's initials are W.E. which likely would be William Ehrhardt, Barr Street West Hockley, Birmingham. He was both a watch and casemaker. Both case and movement have the same serial number, 175489. It is key wind and set, and with Bosley type regulator. It has just been serviced in England (by the same watchmaker who serviced my verge fusee), and is running beautifully.