I have a couple big IBM slave clocks from around the 1950's. (model 57-45). These have the Synchron 120 VAC movements with the relay that puts the clock into fast forward mode until the top of the hour. I'd like to use one as a general shop clock but it looks like there's no easy way to set the time without the master clock and hard wire connections to it. Generic Hanson electric movements would be a PIA to retrofit and hell will freeze over before I'd ever convert a classic electric clock to quartz. Has anyone come up with an easy way to use one as a general shop clock and easily set the time? It appears the only way is to engage fast forward mode to a future time and then wait for real time to catch up and then plug it in.