Watch Antique Pocket Watch with Cuvet. Art Deco Diamond, Sapphire, and Platinum Wristwatch. French Guilloche Enamel and Diamond Ball Pendant Watch. A watch is a personal timepiece that can be worn or carried by the user. Antique Pocket Watch with Cuvet. Art Deco Diamond, Sapphire, and Platinum Wristwatch. French Guilloche Enamel and Diamond Ball Pendant Watch.