A tribute to Seiko’s legacy in sports timing, the Prospex Speedtimer Mechanical combines classic design with modern performance. Featuring a hairline-finished silver dial, orange-tipped seconds hand, and countdown ring, it delivers clarity and utility. The 24-jewel Caliber 6R54 automatic movement offers manual winding, a 72-hour power reserve, and a slim case profile—the thinnest in a Seiko 6R series. Crafted in super-hard coated stainless steel with a curved sapphire crystal and 200m water resistance, this chronograph is built for durability, comfort, and timeless style.