Interesting idea, but for the first few months my c5 barely left my wrist until it failed and went back for service, so wouldn’t have needed hand winding much. Now it’s a long way down the rotation, so gets wound everytime I wear it, but it still kinda works. Admittedly the winding action feels and sounds like trying to start a $50 Chinese chainsaw, but it does still work.
When it fails next I’ll probably either fit a cosc movement or a quartz replacement. Quartz is tempting because it’s so much that the calibre 5 isn’t: tough, reliable, anti magnetic, accurate.