Glycine Combat Sub SportvsSeiko HBC007J1
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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

HBC007J1
Diameter
39mm
39.5mm
Lug-to-Lug
n/a
46.4mm
Thickness
n/a
13.6mm
Water Resistance
300m
highest
200m
Power Reserve
n/a
72h
MSRP
$540
lowest
$1,150
Movement
Sellita SW200-1
Seiko 6R54
Case
5 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Glycine Men's Combat Sub Sport 39mm Automatic Watch GL0404 for its sleek 39mm case size, making it a desirable option for those seeking a well-proportioned Swiss watch with a Sellita movement and sapphire crystal. One owner notes the value proposition, while another highlights its solid build as a precision tool. However, some owners express a preference for a brushed finish on the bracelet's center links, with one modifying theirs. A minor aesthetic critique points to a slight color mismatch between the lume pip on the chapter ring and the dial lume. Overall, owners rate the Glycine Men's Combat Sub Sport 39mm Automatic Watch GL0404 highly for its wearability and value.
Owners widely praise the Seiko HBC007J1's "alive" feel and reflective green dial, with one owner preferring it over a more expensive alternative. The 39.5mm case is noted as a contemporary take on a classic design. Some owners find the 1-12 ring a "purpose nerf," and the included strap is considered underwhelming. Accuracy is rated at -15/+25 seconds per day, and some may prefer a flyer GMT at its $1,150 price point. On balance, owners and reviewers rate the Seiko HBC007J1 well for its vibrant dial and engaging character at the price.
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