Borealis Watch Co. Porto CovovsGlycine Combat Sub Sport

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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.

Borealis Watch Co. Porto Covo at true scale

Porto Covo

Glycine Combat Sub Sport at true scale

Combat Sub Sport

Diameter

40mm

39mm

Lug-to-Lug

42.5mm

n/a

Thickness

12.3mm

11.2mm

lowest

Water Resistance

300m

300m

Power Reserve

n/a

38h

MSRP

$350

lowest

$540

Movement

Sellita SW200-1

Sellita SW200-1

Case

6 specs
Diameter
40mm
39mm
Thickness
12.3mm
11.2mm
Lug-to-Lug
42.5mm
n/a
Lug Width
n/a
20mm
Finish
n/a
n/a
Caseback
n/a
n/a

Crystal & Dial

5 specs
Crystal Shape
n/a
n/a
AR Coating
n/a
n/a
Dial Color
n/a
Black
Indices
n/a
n/a
Lume
None
Luminous

Movement

4 specs
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
38h
Jewels
0
26
Complications
None
Date

Pricing

1 specs
MSRP
$350
$540
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Borealis Watch Co. Porto Covo

Owners widely praise the Borealis Porto Covo for its unique "floating" indices that enhance the dial's appeal and its value proposition. One owner describes the watch as the ultimate water-resistant timepiece, suitable for everyday and business-casual wear. Another owner found the bracelet surprisingly nice, despite a general dislike for beads-of-rice bracelets. The case back engraving referencing Nazare, a Portuguese seaside village known for giant waves, is also noted. One reviewer flagged the lume as "non-existent" and the bezel insert as not the most legible, while also mentioning a striking orange Cerakote case and a well-executed sunburst dial. On balance, owners and reviewers rate the Borealis Porto Covo highly for its distinctive dial design and strong value at its price point.

Glycine Combat Sub Sport

Owners widely praise the Glycine Combat Sub Sport for its thinness, with various sources citing measurements between 10.4mm and 10.8mm, and its comfortable wearability due to contoured lugs that make it feel smaller than its 39mm case size. Reviewers and owners consistently highlight its value, with some considering it the best dive watch under $400 and noting its refined finishing and smooth winding action. However, opinions are mixed on its design, with some finding it unique and others plain or questioning its homage status. Lume quality is a point of contention, with some finding it subpar and hard to read at night, while others describe it as marginally better than a Seiko SKX007. Some owners have also reported inconsistent power reserve or stem issues. Overall, owners and reviewers rate the Glycine Combat Sub Sport highly for its exceptional thinness and value proposition at the price point.

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