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Hi Gary Nothing specific on the 1406U but have the 1407 1405, and according to Ranfft its close in design to the Zenith 135 so I popped that one on too. There are manual watch winders out there they are like a small spring loaded clamp I have attached images. They come in different sizes to fit the crowns. cheers
Hi, yes it is a 718 movement. Never come across this problem before. The watch is keeping great time but every day the date change changes an hour forward so one day will change at say 1am, the next 2am and so forth