As a watch collector I get to talk to lots of watch owners and repairers.
My watch repairer in Uxbridge Mr Ralph reccomends this one. Its a quratz base in stainless and is good for 100m depth. This is based on what he has to mend and the faults he often finds with them.
AVIA Polar Star 100
Avia is an old make of watch. The Polar 100 is a chrome watch for divers, has big glow in the dark hands, and big markers on the dial you can read it in the dark without your glasses. Its an under £60 watch and you can pick them up on ebay for about £20 if you look. It is VERY strong and will take any abuse including abuse under water. On his recomendation I have used one now for 5 years, it has been to the bottom of the ocean several times, hit with an axe, kicked, eaten or at least chewed by a dog and is still going strong. Been to bush moots and everywhere I can think of.
The watch maker was impressed because its the only one he has never seen destroyed by a man using a road drill and jack hammer. Now that is tough!
Sandsnakes