Side by side

Borealis Watch Co. Porto CovovsNOMOS Glashütte Tetra gold 27

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
Tetra gold 27
NOMOS GlashütteTetra gold 27
MSRP $12,700

At a glance

20 of 29 specs differ
Diameter
Porto Covo40mm
Tetra gold 2727.5mm
Power Reserve
Porto Covo40h
Tetra gold 2753 hoursh
Water Resistance
Porto Covo300m
Tetra gold 2730m
MSRP
Porto Covo$415
Tetra gold 27$12,700

Full specifications

Case

9 specs
Category
Diver
Dress
Diameter
40mm
27.5mm
Thickness
11.6mm
6.4mm
Lug-to-Lug
42.5mm
38.5mm
Lug Width
20mm
18mm
Material
Stainless Steel
Gold
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
White
Indices
Applied
Lume
BGW9
None

Movement

5 specs
Caliber
Miyota 9039
DUW 4001
Type
Automatic
Manual
Beat Rate
28,800 vph
21,600 vph
Power Reserve
40h
53 hoursh
Jewels
25
17

Pricing

1 specs
MSRP
$415
$12,700

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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.

NOMOS Glashütte Tetra gold 27

Owners widely praise the NOMOS Glashütte Tetra gold 27 for its elegant, thin, and versatile square-cased design, comfortable wearability due to its light weight and lack of sharp corners, and attractive dial with blued hands. Some owners note the subdial is not recessed as found on other models, and one reviewer dislikes the minute markers in the dial corners. The buckle is described as generic and the suede strap gets dirty easily. Overall, owners and reviewers rate the NOMOS Glashütte Tetra gold 27 highly for its value and elegant, comfortable design.

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