Power Reserve function on Luminor Panerai watch, on the dial, there is an indicator to display the remaining energy of the movement, also means the rest of the time your watch needs to be wound again. The Power Reserve is one of the most useful features of a mechanical watch. Panerai Luminor Power Reserve Watch is available with two case sizes, 40mm and 44mm. Perhapes the Power Reserve of Replica Panerai Watches can not do that well like the original Panerai models, you'd better wind your cheap Panerai watches every three days. Replica watches can not be that bad like some people said, some High-End Replicas also use sapphire crystal, genuine ETA 7750 and top level polishing craft to ensure a comfortable wearing. Even some buyers reported the painting of their stainless steel/gold watches peel off, but I think the watches they bought only worth tens of dollars, so, never waste money on those poor quality replica watches. A small tip for you: the painting on real solid stainless steel watch will never peel off, the colour of gold and rose gold watch will naturally fade after two-year use, K gold will not fade forever. Scratch the genuine sapphire crystal glass face with a small knife, it won't be scratched.