I play tennis every day and I hate to put my Oris off my wrist (and take quartz watch). I'm afraid I can harm the mechanism inside. If I had one handed backhand then I would play tennis in my Oris, but I have two handed backhand so when I hit the ball from the left side I also use my non-dominant hand with watch. Is there any one who play tennis in his Oris? I heard that it's safe to play tennis in Rolex. Is it true?