Glycine Combat Sub Sport GMTvsOak & Oscar The Humboldt GMT
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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.

Combat Sub Sport GMT

The Humboldt GMT
Diameter
42mm
39.5mm
Lug-to-Lug
n/a
46.8mm
Thickness
10.8mm
lowest
12.5mm
Water Resistance
200m
200m
Power Reserve
48h
56h
highest
MSRP
$805
lowest
$2,175
Movement
Sellita SW330-2
Sellita SW330-2
Case
7 specsCrystal & Dial
5 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Glycine Combat Sub Sport GMT for its solid build, comfortable wearability due to its thin profile and curved lugs, and its unique, non-homage design. Reviewers and owners alike note the excellent bezel action and the value proposition. Some owners miss the heft of other models and point out that the cyclops is not as refined as on other luxury dive watches. One owner reports the movement can be regulated to under +1 second per day, while another notes inconsistent power reserve performance, not always reaching 42 hours, and sub-par lume. Overall, owners rate the Glycine Combat Sub Sport GMT highly for its comfortable wearability and unique design at the price.
The watch offers a compelling value proposition, especially when discounted. Cost-saving measures are evident in certain areas of the build.
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.
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