Glycine Combat Sub SportvsSTEELDIVE SD1988
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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

SD1988
Diameter
39mm
55.7mm
Thickness
11.2mm
lowest
15.2mm
Water Resistance
300m
1200m
highest
Power Reserve
41h
n/a
MSRP
$540
$339
lowest
Movement
Sellita SW200-1
Seiko NH35
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 for its solid build, value, and wearability, with many regretting not opting for the 39mm size. Reviewers and owners alike highlight its clean dial, Swiss origin, and thin profile, with one owner noting accuracy at +3 seconds per day and another praising the bezel's click sound as excellent for its price. The watch is considered a strong alternative to more expensive options and offers great value, exceeding expectations for many. Overall, owners rate the Glycine Men's Combat Sub Sport 39mm Automatic Watch highly for its exceptional value and well-executed compact design.
Owners widely praise the STEELDIVE SD1988's case finishing, noting it is surprisingly good for the $180 price point, with circular brushing on top and notably better linear brushing on the case back. The lume is also considered excellent. The watch features a Seiko NH35 automatic movement and has a 1200m water resistance rating. Its large 55.7mm case size is noted as a potential challenge for photography. On balance, owners rate the STEELDIVE SD1988 highly for its exceptional value, particularly the finishing and lume at its accessible price.
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