Borealis Watch Co. Porto CovovsGlycine Combat Sub Box Ceramic

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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.

Porto Covo

Combat Sub Box Ceramic
Diameter
40mm
41mm
Lug-to-Lug
42.5mm
n/a
Thickness
12.3mm
lowest
12.8mm
Water Resistance
300m
highest
200m
Power Reserve
n/a
38h
MSRP
$350
lowest
$1,800
Movement
Sellita SW200-1
Sellita SW200-1
Case
8 specsCrystal & Dial
5 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Borealis Porto Covo for its exceptional value and unique design elements, particularly the "floating" or elevated hour markers that cast shadows. The watch is considered versatile for everyday and business-casual wear, and some owners view it as their ultimate water-resistant watch. One reviewer notes the striking orange Cerakote case and custom hour markers, though the black lume is described as subtle. The Borealis Porto Covo is priced around $335 to $350, with one example selling for $350 in excellent condition. On balance, owners and reviewers rate the Borealis Porto Covo highly for its distinctive design and strong value proposition.
Owners widely praise the Glycine Combat Sub Box Ceramic for its exceptional thinness, comfortable 41mm case, and unique, non-homage design, with one owner calling it the best dive watch under $400 due to superior finishing and value. The bezel action is described as solid and precise, and the dial is legible with good lume on the hands. However, multiple sources flag inconsistent power reserve, sub-par lume on the markers that fades quickly, and a subpar stock strap or bracelet. One owner reported the bezel detaching after a light bump, raising questions about build quality, while others note potential issues with the stem or anti-reflective coating. Accuracy figures vary, with one owner seeing it run about 2.5 seconds fast per day. Overall, owners rate the Glycine Combat Sub Box Ceramic highly for its comfortable thin case and unique design at its price point.
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