Seiko Prospex Alpinist Mens Watch SPB121J1The Seiko Prospex Alpinist has been a real fan favourite amongst Seiko enthusiasts since its introduction in 1959, and it's not hard to see why. One such reason is the Alpinist boasts an impressive compass function, controlled by a 2nd crown at 4 o'clock, which can provide the wearer with an approximate bearing as long as they are in the Northern Hemisphere. To find their bearing, the wearer must point the hour hand to the sun, then rotate the inner bezel until the South point is halfway between the hour hand and 12 o'clock. To round off the design, the Seiko Alpinist features a lush green sunburst dial with classy gold hour markers, 200m water resistance, an automatic movement with 70-hour power reserve and sapphire crystal glass.