Excuse me, do you have the tempo?You do if you're wearing the new Suunto G6 "wrist-top computer" ($449/$549 with PC software; 800-543-9124, suunto.com). It sounds complicated, but it's merely an average-size watch, weighs a feathery 1.92 ounces and is easy to operate. Unlike other golf watches, which just keep scores and stats, the G6 can actually improve your game. On every swing (except practice swings, which are dutifully ignored), the device records and displays the time from takeaway to impact, the angle of your backswing, your clubhead speed and, most importantly, the ratio of backswing to downswing. "In twenty minutes, I got my son to understand the rhythm I've been trying to explain to him for two years," says top instructor Peter Kostis. "This is the first time rhythm and timing can be quantified." The G6 has already been seen on the wrists of Davis Love III, Padraig Harrington and other Tour pros. With any luck, on Father's Day it will be seen on yours.