Ronda quartz movement with 13 jewels and waterproof casing [ 5 ATM ]. Luminescent hands, stopwatch function with split-time measurement and tachymeter. Satin-finish casing made from toughened aluminum. Extra-hard sapphire glass with anti-reflective treatment to ensure clear visibility. Screw down crown. Metal dial. Dial base in silver with sun-brushed effect. Rubber strap in gray with stainless steel clasp. Diameter: 42 mm. Swiss made.