Expresso Satellite Navigation www.GolfESN.com introduces the 2012 AG50s Portable Golf & Auto GPS Navigation System and the WR62 Designer Golf Wristwatch at the 2012 PGA Merchandise Show for RealGolfBuyingGuide.com. The AG50s is the ultimate device for the traveling golfer for destination routes and course distances. The WR62 is a gorgeous designer watch, with a 62-Channel satellite receiver & stainless steel bezel and buttons to wear on and off the golf course.