JFK Half Dollar Pocket Watch. JFK Half Dollar Pocket Watch. The JFK Half Dollar (1964-2010) is embedded in the front of an intricately carved pocket watch case. This watch has a sweep second hand, quartz precision, and a one year warranty. Attached to a fob chain, it arrives with both a warranty and a Certificate of Authenticity. Dimensions: 2.88" L x 2.13" W x .38" H Weight: 0.1875 lbs.