This Seiko Prospex Speedtimer 42mm Quartz Chronograph Watch SFJ003P1 is a professional timepiece that is perfect for those who demand precision and accuracy in timekeeping. It features a stainless steel case with a black on black dial colourway, making it both stylish and functional. The Prospex watch collection represents Seiko's professional timekeeping heritage, and this particular design takes inspiration from the brand's innovative history. It is powered by a new in-house solar chronograph calibre equipped with a stopwatch that measures time to the nearest 1/100th of a second. Seiko has been the World Athletics Official Timekeeper since 1985, supplying timing and measurement services to more than 180 World Athletics events worldwide. This legacy continues today as Seiko remains committed to producing precisely accurate professional sports timing instruments. The hammer-shaped button allows for easier operability of the stopwatch function, while the overcharge prevention function ensures that the battery life is prolonged. This model is powered by the in-house built Solar chronograph calibre 8A50 that allows measurement to the nearest one-hundredth of a second. Prospex is a combination of the words 'Professional' and 'Specifications.' Seiko Prospex timepieces are designed to be practical, reliable, and durable; they meet high standards required in extreme environments. If you're looking for a watch that can keep up with your active lifestyle without sacrificing style or functionality, this Seiko Prospex Speedtimer watch is an excellent choice.