If You merely want one RM or it will be day by day wear the ZF makes more feeling. ZF undisputedly is the higher model. Appears to possess the clutch system to forestall in excess of-winding, but Odd to find out it over a guide wind watch? My 1st watch https://superclonewatchesreddit33974.blogozz.com/27744740/super-clone-watches-uk-reviews-an-overview