Side by side

Borealis Watch Co. Porto CovovsZelos Spearfish 3

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
Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

10 of 29 specs differ
Diameter
Porto Covo40mm
Spearfish 340mm
Power Reserve
Porto Covo40h
Spearfish 340h
Water Resistance
Porto Covo300m
Spearfish 3200m
MSRP
Porto Covo$415
Spearfish 3$749

Full specifications

Case

6 specs
Diameter
40mm
40mm
Thickness
11.6mm
11.5mm
Lug-to-Lug
42.5mm
40mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

2 specs
Dial Color
Black
Diver - Forged Carbon
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9039
La Joux-Perret G100

Pricing

1 specs
MSRP
$415
$749

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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.

Zelos Spearfish 3

The Zelos Spearfish 3 is widely praised for its exceptional finishing, with razor-sharp polish and flawless brushed transitions that owners feel exceed its price point. The 40mm case is noted for its wearability, and the La Joux-Perret G100 movement offers a 68-hour power reserve, with reported accuracy averaging +2.6 seconds per day. Reviewers highlight the exceptionally smooth bi-directional bezel and a tool-less micro-adjustment clasp described as best-in-class among microbrands. The sapphire sandwich construction and lumed bezel are also cited as desirable features. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and value at its price point.

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