Taking its name from the original and much-loved SeikoAlpinistlaunched in 1959 for JapaneseYama-otokomountain men, reliable in treacherous terrainthis watch further evolves the Alpinist specifications and overall designwith a legibility focus. Its Arabic numerals are a signature feature of Alpinist pieces, whilst the curved sapphire glass with an anti-reflective coating, 24-hour display on the bezel and red highlighted 24-hour hand enhance the legibility further. Ever practical, the watch features a compass functionality, whilst its super-hard coating gives it shine and strong scratch resistance. The in-house built 6R54 Calibre is the first mechanical GMT movement in a Prospex watch to have a three-day power reserve, allowing tracking of two different time zones at the same time. Prospex is a combination of the wordsProfessionalandSpecifications.Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in ex