The Philadelphia Watch Trade Show is coming to the Greater Philadelphia Expo Center in Oaks on Aug. 28-29. Attendees will find a showcase of vintage watches, luxury brands, rare finds, and independent labels for sale, trade, and display. According to a PhillyVoice report, the two-day marketplace brings dealers, collectors, and enthusiasts together to buy, sell, and trade watches. Attendees may bring their own watches to sell or trade on the show floor. The Greater Philadelphia Expo Center is at 100 Station Ave. in Oaks.