The Seiko Prospex Alpinist GMT HBC007 is a mechanical field watch that pairs the Alpinist's compass-ring heritage with a true GMT complication. Its Caliber 6R54 automatic movement runs about 72 hours on a full wind and drives a red-tipped 24-hour hand over a 24-hour track. The 39.5mm stainless case, curved sapphire crystal, screw-down crown and 20 bar water resistance make it a wearable everyday travel watch. Against the standard three-hand Alpinist it adds a second time zone; against larger GMT divers it is slimmer and lighter on the wrist.
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Owners rate the HBC007 very highly, praising the green dial, the GMT practicality and the comfortable case size. The main grumbles are the case thickness and the leather strap.
The Seiko Prospex Alpinist Mechanical GMT HBC007 pairs the Alpinist collection's adventurous look with a GMT function. A green dial sits inside a stainless steel case, and a rotating compass inner ring adds to the Alpinist character.
It runs on Seiko's Caliber 6R54, an automatic movement that can also be wound by hand. The power reserve is approximately 72 hours (3 days). The GMT function tracks a second time zone, using a red-tipped 24-hour hand and 24-hour markings that are easy to read.
A curved sapphire crystal protects the dial, and the screw-down crown and 20 bar water resistance add durability. A see-through screw caseback shows the mechanical movement. The brown leather strap closes with a three-fold clasp with push-button release.
