High quality black leather waterproof watch band for Luminox evo seal, colormark, 6000, 8000, 6400 and any other 23mm watch. You no longer need to wear a metal or rubber band to swim or get your watch wet. Waterproof top and lining. Band measures 80mm wide and 120mm long. We have tested out this band. It is a special treated leather that will not shrivel up and loose its shape because it gets wet. Swimming in salt water or freshwater is not a problem. It really holds up well. Compare to $100-$200 watch bands.