Black leather waterproof watch band high quality 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 lose it's shape because it gets wet. Swimming in salt water or freshwater is not problem. It really holds up well. Compare to $100-$200 watch bands.