GOHUOS Men's Unique Analog Quartz Big Dial Calendar Auto Date Brown Leather Band Business Casual Wrist Watch Imported Original Japanese movement, high abrasion resistant glass, A-class material. Multi-function with calendar. Week display and calendar subdials. Advanced manufacturing technology, wear well and wear comfortable. High Quality leather Band,durable and pratice, gives you a new classic definition. 30M waterproof design(not for swiming, diving, showing,etc), good choice suitable for outdoor sports use.