I dodn't know of a watch repairer, jeweller at Crewe works, but there was certainly one at Doncaster, still employed into the 1980s, and a tradesman too, could make a watch as well as repair or assemble one.
I hadnt thought of that - all the stations had their own clocks, as did the Guards, so it would make sense to have a jeweler on staff to maintain them.
This is the record I found
John Bebbington
Employment: 1913, At Crewe, Jeweller
I am pretty certain he is one of mine.
I see a few 'family' names in there, on both of my maternal grandparents surnames.
Gaille