+1 for Timex. (Wide range available)
I have one of their IronMan models – although they seem to have changed the range since I bought mine.
Used mine for Scuba diving, until I gave that up about 10 years ago, and have been using it for biking ever since.
It’s seen a lot of saltwater, mud, rain, rough handling on dive boats, & more ‘comedy falls’ than I’d care to mention, and it’s still going strong.
Not bad for £25 and one replacement battery.
Quite a few of my diving buddies bought them because they were cheap to replace if something happened to them, but the only incident that I know about is one guy dropping his overboard in the Red Sea. (Right where the depth was about 200 meters too)
Would definitely go the same way if I ever need another.