Prospex Alpinist Mechanical GMT - SPB379

Story

An adventure-ready timepiece with a nod to history

Inspired by Seiko's 1959 Alpinist, the Prospex Alpinist Mechanical GMT is designed to meet the challenges of adventure with flawless precision and classic style. The iconic wedge-shaped markers, bold numerals, and stylized hands all nod back to the original, while an upgraded anti-reflective sapphire crystal and inner rotating compass bezel make it the sharp companion for outdoor expeditions.

Features

• Inspired by Seiko’s first sports watch, the 1959 Alpinist
• Black dial with iconic wedge-shaped markers and stylized numerals and hands
• Curved sapphire crystal with anti-reflective coating for peak visibility
• 24-hour GMT bezel with inner rotating compass bezel
• 24-jewel automatic movement with manual winding capability
• 72-hour power reserve
• LumiBrite hands and markers
• 20 bar, 200m water-resistance
• Date calendar
• Red-tipped GMT hand

Specs

Movement	Seiko Caliber 6R54
Movement Type	Automatic with manual winding capacity
Duration	Approx. 72 hours
Case Material	Coated stainless steel
Crystal	Sapphire
Lume	LumiBrite on hands and markers
Water Resistance	200 m (660 ft)
Case Thickness	13.6 mm
Case Diameter	39.5 mm
Case Back	Screw-down, see-through
Crown	Screw-down
Bezel	24-hour GMT & rotating compass bezels
Jewels	24
Display	GMT
Clasp	Tri-fold push button release
Lug Width	20 mm
Strap	Black calf leather

About Seiko

When we think of Seiko, one word comes to mind: legacy. Founded in 1881 by entrepreneur Kintaro Hattor in the heart of Tokyo, Seiko knows every nook and cranny of what makes an elite watch truly incredible. In those 130+ years, they came up with lasting innovations like the first quartz watch, the first titanium dive watch, and the first multi-functional digital watch. Needless to say, Seiko continues to push the watch game forward.