features a luxury and business look, calendar indicator, chronograph sub-dials of second/minute/microsecond and luminous pointers. It is a classic man watch that you should have on your wrist. Features: Practical Function: calendar indicator, chronograph sub-dials of second/minute/microsecond, luminous pointers. 30 Meters Waterproof: withstands splashes or brief immersion in water, but not suitable for swimming or bathing. Luminous hands ensure easy readability and low-light visibility in the dark. Hard scratch resistant mirror is made of mineral glass, which is not easy to wear. Classic aesthetic design, features beautiful and stylish.