> I don't want to have to leave an expensive watch with my bag on the beach While it's sapphire, I recommend that you keep your watch and phone as far away fro

> I don't want to have to leave an expensive watch with my bag on the beach While it's sapphire, I recommend that you keep your watch and phone as far away from salt water and sand as possible. One grain gets in the crown and you could be in trouble. My sport watch is a Timex which is resistant to 100m, but the springs sometimes get sand stuck in them.