The Watch is available in many different designs, which include a silver dial with blue synthetic and leather strap, a silver "flinqué" dial with black alligator strap, in addition to a silver "flinqué" dial using a stainless steel strap. The electro-mechanical movement is wound when in motion; having said that, https://www.jowissa.com/products/lewy-9-swiss-mens-watch-j7-126-l