GOHUOS Men's Tourbillon Steampunk Self Wind Silver Automatic Mechanical Big Dial Wrist Watch Leather Strap Imported Automatic-self-wind movement with analog display.(Powers automatically with the movement of your arm) One decoration small sub dials, not for working, workable day-night sub dials. High Quality Leather Band,durable and pratice, gives you a new classic definition. Organic hardened hardlex glass dial window, scratch resistant. If the pointers do not luminous, plesae put the watch under the sunlight or use a strong light lighting it for some time.