are performed in static water and mean nothing as far real moving water proof integrity. A watch water proof to 60 meters is good for showers and rain only as odd as that may seem. To use a watch underwater you would need a watch of at least 120 meters to take it for swimming in a pool or ocean. To go beyond that you need a real divers watch of at least 300 mm. Otherwise, I would leave the watches in a dry place while you dive or swim.