The prospex speedtimer boasts a captivating dark green dial with a vintage touch, while embracing modern design elements. Crafted from stainless steel and sapphire glass, it features solar technology for continuous battery charging and a power indicator displaying its 6 month power reserve. This chronograph watch features a tachymeter for speed measurement, a durable screw down case back to ensure reliability with its 100 metre water resistance, and lumibrite hands and indexes for enhanced visibility in low light. Designed for both function and flair, it's the perfect blend of performance and precision. • powered by the solar powered movement with a power reserve of up to 6 months. • presented on a silver stainless steel bracelet with push button deployment clasp. • scratch resistant sapphire crystal glass. • 39.0mm case width. • 100 metre water resistance.