GOHUOS Mens Leather Band Auto Date Quartz Military Dressy Wrist Watch Black Durable and Pratice, Leather band, Comfortable to wear and durable to use Multiple Function. Water proof & Calendar & Water Resistance. 30M waterproof design , good choice suitable for outdoor sports use. Japanese Quartz Movement, provide precise and accurate time keeping. Long Battery Life. If the pointers do not luminous, plesae put the watch under the sunlight or use a strong light lighting it.