Glycine Combat SubvsMarin Instruments Steel Skin-Diver P (Polar)
lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures
Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Combat Sub

Steel Skin-Diver P (Polar)
Diameter
42mm
39mm
Thickness
10.4mm
n/a
Water Resistance
200m
200m
Power Reserve
38h
n/a
MSRP
$515
lowest
$1,295
Movement
Sellita SW200-1
Sellita SW200-1
Case
7 specsCrystal & Dial
6 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Glycine Combat Sub for its exceptional thinness, with sources noting case thicknesses around 10.4mm to 10.8mm, perfect proportions, and a refined aesthetic that avoids homage designs. Many highlight its significant value, especially at discounted prices, and its solid build quality. Some owners report an inconsistent power reserve and sub-par lume that can be difficult to read at night, while one owner noted a slightly off-color lume pip on the chapter ring. Overall, owners rate the Glycine Combat Sub highly for its blend of wearability and value.
The Glycine Combat Sub offers good value at its price point, with reviewers highlighting its attractive design and comfortable wear. However, multiple reviewers noted areas where cost-saving measures are apparent in the build quality.
Owners widely praise the Marin Instruments Steel Skin-Diver P (Polar) for its appealing design language and comfortable wearability, with many calling it a great do-it-all watch. Reviewers highlight its legible dial, smooth-action bezel, and practical, utilitarian design. Some owners find the 39mm case size perfect and appreciate the 20mm lugs for strap versatility. The watch features drilled lugs for easy strap changes and a Sellita SW200-1 movement that kept good time, running at approximately +5 seconds per day in testing. However, some find the steel bezel and dial color combination unremarkable, and one owner noted the lume was merely okay compared to other brands. The $1,295 price for the stainless steel bezel version was considered a significant con by one owner, while another found it well-priced. The 39mm case, while 11.5mm thin, wears larger due to its long lugs, and thicker straps can make it feel bulky.
Similar watches
Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.
Also compared
Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.









