Side by side

Borealis Watch Co. Porto CovovsSternglas Naos Pro Automatik

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Porto Covo
Borealis Watch Co.Porto Covo
MSRP $415
Naos Pro Automatik
SternglasNaos Pro Automatik
MSRP $755

At a glance

12 of 29 specs differ
Diameter
Porto Covo40mm
Naos Pro Automatik38mm
Power Reserve
Porto Covo40h
Naos Pro Automatik42h
Water Resistance
Porto Covo300m
Naos Pro Automatik50m
MSRP
Porto Covo$415
Naos Pro Automatik$755

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
38mm
Thickness
11.6mm
9mm
Lug-to-Lug
42.5mm
42.4mm
Lug Width
20mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Black
Lume
BGW9
Luminova Punkte

Movement

3 specs
Caliber
Miyota 9039
Miyota 9015
Power Reserve
40h
42h
Jewels
25

Pricing

1 specs
MSRP
$415
$755

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What people say

Owners + reviewers, side by side

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

Borealis Watch Co. Porto Covo

The Borealis Porto Covo is widely praised for its 39mm size and unique cantilevered indices that create a 3D effect and depth. Owners note the indices' floating appearance is a well-executed design. One owner reported poor accuracy and a terse customer service response, while another wished for a 42mm size option. The $395 price is considered reasonable for a microbrand, though some feel it does not compare favorably to AliExpress options. Overall, owners appreciate the Borealis Porto Covo for its distinctive dial design and wearable 39mm case size.

Sternglas Naos Pro Automatik

The Sternglas Naos Pro Automatik is praised for its slim 9mm case and Bauhaus dial design, featuring clear hour markers and a framed date window. Owners note the upgraded Miyota 9015 movement with a 4Hz beat rate. Accuracy is reported as -10/+30 seconds per day, which is not ideal for precision enthusiasts. The five-link bracelet's lack of fitted end-links and the optional bracelet's chunkiness are flagged as areas lacking refinement. Overall, reviewers highlight the Sternglas Naos Pro Automatik's improved wearability and premium feel at its price point.

From video reviewers

The Bauhaus design is a strength. The value proposition is a weakness.

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