Glycine Combat Sub SportvsSTEELDIVE SD1928M
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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

SD1928M
Diameter
39mm
39mm
Lug-to-Lug
n/a
49mm
Thickness
11.2mm
lowest
12mm
Water Resistance
300m
highest
200m
Power Reserve
41h
n/a
MSRP
$540
$119
lowest
Movement
Sellita SW200-1
Seiko NH35
Case
4 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, clean design, and Swiss origin, with many finding it a great value, especially at prices around $350. The 39mm case size is frequently highlighted as a positive, though some owners feel it is better suited for smaller wrists or regret not getting this size. Accuracy is reported around +3 seconds per day, and the bezel action is noted as having a satisfying click. One owner considers the Glycine Men's Combat Sub Sport 39mm Automatic Watch an underrated option, with its thin case and 300m water resistance contributing to its appeal. On balance, owners rate the Glycine Men's Combat Sub Sport 39mm Automatic Watch highly for its value and wearability at the price point.
Owners widely praise the STEELDIVE SD1928M as an amazing value, with one owner confirming its performance down to 100 meters underwater. The 39mm case is noted as an automatic option for those seeking a Hamilton Khaki Murph homage. One owner reported a bezel insert popped out after a few weeks on a different Steeldive model, and a bent crown shaft caused friction when screwing the crown in and out on their Tuna homage. Overall, owners rate the STEELDIVE SD1928M highly for its exceptional value.
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