FujiTime Men's M367WS-B Adatara-Series Classic Silver Bezel Black Leather Band Automatic Watch Highest standard Japanese Automatic movement; Functions without a battery; Powers automatically with the movement of your arm Multifunction with analog display, automatic hand and winding system, 21600 vibrations per hour, power reserve 40 hours Silver tone all stainless steel case, genuine black leather band with buckle Silver dial with silver Arabic numerals, time markers, and hour, minute, and second hands Water-resistant to 500 feet (150 M)