Oak & Oscar The Humboldt GMTvsLorier Hyperion SII
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

The Humboldt GMT

Hyperion SII
Diameter
39.5mm
39mm
Lug-to-Lug
46.8mm
n/a
Thickness
12.5mm
n/a
Water Resistance
200m
200m
Power Reserve
56h
n/a
MSRP
$2,175
$699
lowest
Movement
Sellita SW330-2
Automatic
Case
6 specsCrystal & Dial
5 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Oak & Oscar The Humboldt GMT is praised for its exceptional accuracy, often running at or near 0 seconds per day, and its robust construction quality for the price. Owners highlight the sandwich dial construction with its signature date window and orange accents, along with its anti-magnetic properties. Some find the bracelet sizing adjustment slightly awkward and note the lume could be brighter. On balance, owners and reviewers rate the Oak & Oscar The Humboldt GMT highly for its precise timekeeping and solid build at its price point.
The Humboldt GMT's sandwich dial and true GMT complication deliver practical traveler functionality in a 40mm brushed stainless steel case with 20ATM water resistance. Swiss-made movement construction with anti-shock and anti-magnetic properties meets tight manufacturing tolerances and rigorous testing standards. Positioning against sub-$2,000 GMT competitors raises questions about value proposition relative to alternatives in this price tier.
Owners widely praise the Lorier Hyperion SII for its vintage aesthetic, with specific mentions of the glossy black dial and tasteful text. The finishing on the case is also highlighted as excellent, and the bracelet is found to be comfortable. One owner notes the Miyota 9075 movement as a standout feature for a GMT watch under $800. However, drawbacks include the Hesalite crystal, which can warp the view at the dial's edge and scratches easily, and the GMT hand is described as small and difficult to spot. One user also reported the winding action as not smooth with significant crown resistance. Overall, owners and reviewers rate the Lorier Hyperion SII highly for its vintage charm and value, particularly for its GMT functionality and case finishing.
The GMT functionality is a key strength. The Miyota 9075 movement's 42-hour power reserve is a drawback. Reviewers disagreed on the value proposition at the price point.
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