So bad people toss them overboard to get rid of them?
Apparently the original band was defective.................
Nah, It’s simpler than that. And this seems to be fresh water. It’s worse in salt water. The salt water makes the skin slippery and rings and such just slide right off. I had a scuba shop for years and my beach combing divers were always bringing in rings, St Christophers silver coins and the like. I always bought their finds to keep them motivated. When the price of gold went up in the late 70’s I sold a cup full of gold rings. No way to find the owners since most were tourist types and long gone by the time the things were found.
Bottom line: take off your jewelry when diving/swimming. Metal banded diving watches work just fine.