Found your old thread RCAFBuster - Ive just acquired the same...but without the customised lume job. Im told by dragondan it might be later -60s and perhaps even early 70s. Im sure your research showed you that Garrard are and were a very high end jewellery shop in London. They would have served the well heeled gentlemen of the era, and I think a tool watch bearing their name is very uncommon . Normally you see 9ct and 18ct gold dress watches with the Gerrard name, housing Smiths movements inside.