Glycine Combat Sub Sport GMTvsZelos Spearfish 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

Spearfish GMT
Diameter
42mm
40mm
Thickness
10.8mm
lowest
13mm
Water Resistance
200m
200m
Power Reserve
48h
n/a
MSRP
$805
lowest
$999
Movement
Sellita SW330-2
Sellita SW330-2
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.
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.
Owners widely praise the Zelos Spearfish GMT for its exceptional value and build quality, with one owner noting it garners more compliments than higher-end watches. Reviewers highlight its excellent machining, flawless finishing, and a superb bracelet featuring tool-less micro-adjustment that surpasses its price point. The watch is powered by a Sellita SW330-2 automatic movement. Some owners report accuracy around +2.6 seconds per day, while others note a minor compromise in end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and bracelet at its $645 price.
The bezel action is a strong point. The bracelet quality is a weakness. Reviewers disagreed on the dial material, with some mentioning aventurine and others meteorite.
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