Postmodern Mechanical Pocket WatchThe movement on this sleek watch is mechanical so set the time, wind it up and enjoy the moving parts from both the front and back. It is available on a 30 inch necklace chain or mens pocket chain. If you would like the necklace chain adjusted (at no extra cost) to a different length, just let me know at checkout. Available in antiqued brass, black gun metal, or silver. Each watch comes in a gift box with instructions.