I am an avid kayaker with a need to keep an eye on actual and elapsed times (all in a wet and corrosive environment). Waterproof features and the plastic/rubber wrist band handles salt water well. The rotating bezel allows me to track timing during training sessions. I have 'smallish' wrists, but the size still works well, giving maximum visibility without looking like a you're wearing a saucer. I prefer the lightweight plastic body compared to metal cases and bracelets of "bling" diver's watches.