Hamilton Limited Edition Chrono-Matic 50 American Classic Black Dial Leather Strap Mens Watch H51616731. This watch features a black dial with the Hamilton logo below the 12 o'clock index. It has two chronographs for measuring speed, positioned at the 3 and 9 o'clock index, creating a 'reverse panda style' with white subdials. A small circular date window replaces the 6 o'clock index. The chapter ring includes a tachymeter for measuring speed and distance. The hands are powered by an exclusive H-31 automatic chronograph movement with a 60-hour power reserve and an H pattern design on the oscillating bridge. The dial is surrounded by a thick silver stainless steel case with a diameter of 48mm and protected by sapphire crystal glass. A black leather strap with a pin buckle fastens the watch. This watch is water-resistant up to 100 metres, suitable for swimming and snorkelling. Key Features include: Limited to 1,972 Pieces, Chronograph, Automatic, Date Window, Countdown, Tachymeter, Black Leather Strap, Black Dial, Silver Stainless Steel Case, H-31 Movement, 48mm Case, Reverse Panda Style, Sapphire Crystal Glass, 100m Water Resistant, 60 Hour Power Reserve, Pin Buckle. The Hamilton brand, founded in 1892, is known for accurate timekeeping, earning the title "The Watch of Railroad Accuracy". They supplied watches to the US military in both world wars and produced over 10,000 Chronometers for the American War effort. Hamilton has a strong relationship with Hollywood, featuring in over 450 films. Their headquarters moved to Switzerland in 2003, but they remain a global force, combining American heritage, Swiss internals, and Hollywood flair.