The Spaceview models can have a problem, primarily because there is no dial. If the clearance between the top of the hour wheel and the underside of the minute hand is too great, the hour wheel can lift, become disengaged with the pinion on the minute wheel, rotating a bit, re-engaging, the result being the hour hand alignment is lost. If a watch has a dial, a dial washer can be placed over the hour wheel, preventing this problem by holding the hour wheel in engagement. Can’t use a dial washer on a Spaceview. This is not a difficult problem to solve, but most in this trade today are gun shy with Accutrons. Re-calibrate the hands, and make certain the minute hand is low enough to prevent the hour wheel lifting, once the hands are back on.