Function: dual time, chronograph stopwatch, day of the week display, date display, timer alarm, luminous, 12 / 24-hour system, speed measurementMaterial: high-quality alloy case, high-quality steel strap, mineral-reinforced glass, stainless steel bottom cover, stainless steel buckleDial diameter: 44mmDial thickness: 16mmStrap length: 220mmStrap width: 22mm