Watch Specifications Brand: BINGER Movement : mechanical hand wind movement Metal Composition: 316L stainless steel Crystal : Sapphire Case Measurements :43mm diam Package included: -1 * Watch -1 * Gift Box -1 * Manual Instruction Please give us a five-star feedback if you are satisfied with our products and service. Reminder: 1. Please peel all films off before wearing. 2. Please keep the watch away from magnet to avoid making the watch stop working. 3. Please wind up the watch before every usage.