I  had a Casio Waveceptor 500 WV-57H for a number of years, and finally the band snapped.  I looked for a long time to locate another, finally gave up and purchased another newer Casio Waveceptor but continued to look for a band.  One day while looking at Watch accessories on AMAZON, I found the  fantom watch band. Goes to show that it you look often on AMAZON the possibilities are endless.  The Band was an exact fit and reasonably  priced.