Glycine Combat SubvsSeiko Prospex Sea
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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

Prospex Sea
Diameter
42mm
43.8mm
Lug-to-Lug
n/a
48.7mm
Thickness
n/a
12.8mm
Water Resistance
200m
200m
Power Reserve
n/a
41h
MSRP
$515
lowest
$625
Movement
Sellita SW200-1
Seiko 4R35
Case
4 specsCrystal & Dial
3 specsMovement
3 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 42mm Automatic Watch GL0083 for its value as an entry-level Swiss automatic, its classic design, and its wearability, with many noting it wears smaller than its 42mm size due to short lugs and a slim 10.5mm thickness. The lume is reported to last longer than a Seiko SKX007. Some owners, however, find the 42mm case size too large for smaller wrists, preferring smaller variants, while others with larger wrists find it fits well. One owner notes the lack of drilled lugs can make strap changes inconvenient. Overall, owners rate the Glycine Men's Combat Sub 42mm Automatic Watch GL0083 highly for its value and versatile, classic design.
The Seiko Prospex Sea is widely praised for its excellent value as a sport watch, with owners highlighting its comfortable wearability and generous lume. Reviewers note its solid build quality and attractive design, with some specifically mentioning the matte black dial as a strong point. One owner reports accuracy around +1 to +2 seconds per day. The 43.8mm case size is considered substantial by some, and one owner found the watch heavy and thick, regretting not choosing a different variant. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its blend of classic design and modern utility at an accessible price point.
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