Jewelry in Watertown, ConnecticutList of Companies in Jewelry category in the city of Watertown, Connecticut.Share this page: Jon`s Jewelers Watertown, Jewelry; 695 Main St, Watertown, CT, 06795-2625; (860) 274-7418Onyx II Watertown, Jewelry; 683 Main St, Watertown, CT, 06795-2625; (860) 945-32471