The design of the hamilton jazzmaster watch turns timekeeping into something of a tease. A glance at the black dial of the watch reveals part of the swiss automatic movement in action - but not all of it. Some things can be left to the imagination - especially when they are clothed in sumptuous quality materials and fine design detail. A sapphire crystal tops the 42mm stainless steel case, that also showcases a see-through case back. The black calfskin leather strap secures with a push-button deployment clasp, and the watch is water-resistant to 50 meters.