As most of my watches are vintage with snapback cases, I need a reliable case opener which can be operated by the technically challenged. I have used a variety of sharp and not so sharp knives and other bending implements and have sometimes come a bit to close to cutting my fingers off and having to join the Japanese mafia. I also need something that does not damage the case, even if inexpertly handled. I found an interesting contraption on ebay (pictured below). Does anyone know if this would be the solution of have any other recommendations ?
/ martin