Miniature Watch Motorcycles by Dmitry Khristenko
Dmitriy khristenko, a USA-based ukrainian-born artist, creates miniature replicas of motorcycles and other vehicles (such as quad bikes, tricycles and bicycles), all built entirely from recycled wristwatch parts. the wristbands are circled into tires while the glass of each timepiece face becomes the windshield of these model-sized vehicles.
http://www.designboom.com/weblog/cat/10/view/19863/miniature-watch-motorcycles-by-dmitry-khristenko.html