Does anyone have a spare one of these clasps I can buy? It's essentially identical to the current Sumo/Monster clasp, but does not have the divers extension (which digs into my wrist). It appears this was on some divers through the 90s and early 2000s (I think). Measures 18mm for link width. The one I have is beyond what I think a scouring pad can restore - would like to find a cleaner one. Thanks!