Watch Opening Tool

I had the challenge to replace the battery of my wife's watch, which turned out to have a screwed backplate. Unfortunately, I didn't have the special tool needed to open this cover. After some failed attempts with two screwdrivers, I decided to try to print a tool. For sure I was sceptical about whether plastic could withstand the force needed to unscrew the cover but tried a print with PC Blend. And indeed this worked. Maybe PLA would have worked as well but I didn't try. I would no