Borealis Watch Co. Porto CovovsYema Diver

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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

Yema Diver at true scale

Diver

Diameter

40mm

39.5mm

Lug-to-Lug

42.5mm

n/a

Thickness

12.3mm

10.9mm

lowest

Water Resistance

300m

highest

200m

MSRP

$350

lowest

$990

Movement

Sellita SW200-1

Sellita SW200-1

Case

6 specs
Diameter
40mm
39.5mm
Thickness
12.3mm
10.95mm
Lug-to-Lug
42.5mm
n/a
Lug Width
n/a
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
n/a
Black

Pricing

1 specs
MSRP
$350
$990
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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 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.

Yema Diver

One owner reported a water ingress issue on their Yema Diver the first time it got wet in a lake, despite rinsing and inspecting the watch and bezel. Another owner noted that this manual wind Yema Diver, while featuring a cool patina, is unlikely to be waterproof or gain value, positioning it as a fun second watch rather than an investment. Overall, owners view the Yema Diver as a fun second watch rather than an investment, with one owner experiencing a water ingress issue.

From video reviewers

The Swiss Sellita movement is a notable feature. Reviewers did not reach a consensus on any weaknesses.

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