I'm not a diver but I wanted/needed a watch that would hold unto the water and chemical environment of my Salon. (You wouldn't believe how many watches I've through that can't hold up in my work environment.) I was a bit dubious about the left-side position of the crown & was pleasantly surprised that it makes for a more comfortable fit when flexing my wrist! (I would love to know the actual reason for this non-traditional position of the crown?!) I love the fit, feel & function; in short, I'm VERY happy with my purchase.