About the New York Antique Jewelry & Watch Show The New York Antique Jewelry & Watch Show is produced by GLM®. GLM is a leading producer and marketer of consumer product tradeshows in North America, serving industries as diverse as giftware, home furnishings, social stationery, home textiles, tabletop, gourmet housewares, contemporary furniture, personal care, antiques, jewelry, art, surf, skate, water sports, swim and resorts.