Seiko Prospex Alpinist Mechanical GMT Black SPB379 SPB379J1

Taking its name from the original and much-loved Seiko ‘Alpinist’ – launched in 1959 for Japanese ‘Yama-otoko’ mountain men, reliable in treacherous terrain – this watch further evolves the Alpinist specifications and overall design – with a legibility focus.

Its Arabic numerals are a signature feature of Alpinist pieces, whilst the curved sapphire glass, 24-hour display on the bezel and red 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 words ‘Professional’ and ‘Specifications.’ Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.

Manual and automatic winding capabilities

Power reserve: approximately 72 hours

24 jewels

The 24-hour display on the bezel and the 24-hour hand with red tip guarantee the legibility of the GMT function.

Black dial

Curved sapphire crystal

Case diameter: 39.5 mm

Case thickness: 13.6 mm

Lug-to-lug: 46.4

Stainless steel case

Black leather strap

Tri-fold push button release clasp

Water-resistant to 20 bar, 200 meters (660 feet)

Caliber 6R35