Side by side

Borealis Watch Co. Porto CovovsSpinnaker Bradner GMT

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
Bradner GMT
SpinnakerBradner GMT
MSRP $299

At a glance

11 of 29 specs differ
Diameter
Porto Covo40mm
Bradner GMT42mm
Power Reserve
Porto Covo40h
Bradner GMT40h
Water Resistance
Porto Covo300m
Bradner GMT180m
MSRP
Porto Covo$415
Bradner GMT$299

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
42mm
Thickness
11.6mm
15mm
Lug-to-Lug
42.5mm
50mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
180m

Crystal & Dial

2 specs
Dial Color
Black
Brown
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9039
Seiko NH34A

Pricing

1 specs
MSRP
$415
$299

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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.

Spinnaker Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

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