Glycine Combat SubvsSerket Watch Co Reef X
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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

Reef X
Diameter
42mm
42.5mm
Lug-to-Lug
n/a
49mm
Thickness
10.4mm
lowest
12.7mm
Water Resistance
200m
200m
MSRP
$540
$399
lowest
Movement
Sellita SW200-1
Miyota 8215
Case
3 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Glycine Men's Combat Sub 42mm Automatic Watch GL0534 is praised for its wearability, with owners noting its thinness at 10.4mm and inward-bending lugs make it comfortable even on smaller wrists. Its lume is reported to last longer than a Seiko SKX007's, though one owner observed slight underapplication at 6 o'clock and another found the lume a bit weak in artificial light. Owners found the Glycine Combat Sub 42mm Automatic Watch GL0534 to be a good value, with one purchasing it for $299.99 and another at $300, questioning if better value exists under $400. Accuracy is noted as good, though not perfect, by one owner. Overall, owners rate the Glycine Men's Combat Sub 42mm Automatic Watch GL0534 highly for its wearability and value at the price point.
Owners praise the Serket Watch Co Reef X for its tool-less bezel and bracelet swap system, allowing for frequent customization. One owner notes the watch looks great and matches images. The bezel is described as huge, comparable to the Marathon SAR. One owner found the receipt paper quality to be off. Overall, owners rate the Serket Watch Co Reef X highly for its customization features and aesthetic appeal.
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