Side by side

Borealis Watch Co. Porto CovovsZelos Blacktip 41

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
Blacktip 41
ZelosBlacktip 41
MSRP $499

At a glance

11 of 29 specs differ
Diameter
Porto Covo40mm
Blacktip 4141mm
Power Reserve
Porto Covo40h
Blacktip 4140h
Water Resistance
Porto Covo300m
Blacktip 41200m
MSRP
Porto Covo$415
Blacktip 41$499

Full specifications

Case

6 specs
Diameter
40mm
41mm
Thickness
11.6mm
12mm
Lug-to-Lug
42.5mm
41mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
Teal
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9039
Miyota 9015

Pricing

1 specs
MSRP
$415
$499

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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 Blacktip 41

The Zelos Blacktip 41 is widely praised for its exceptional quality and value, featuring a titanium case, sapphire crystal, and a reliable Miyota 9015 movement. Owners and reviewers highlight its well-proportioned 41mm case with strong ergonomics, a 47.5mm lug-to-lug, and a 11.5mm thickness, making it a comfortable diver for many. The watch boasts eye-catching dials with grained textures and degrade effects, complemented by large applied indices, a lume-filled crown, and strong two-tone lume. The bezel action is described as having firm clicks with a slight return. The Miyota 9015 movement provides near-COSC accuracy and a 200m water resistance. On balance, owners and reviewers rate the Zelos Blacktip 41 highly for its superb value and well-executed dive watch features at its price point.

From video reviewers

The Zelos Blacktip 41 offers excellent value at its price point. Reviewers noted the meteorite dial as a unique feature.

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