Side by side

Borealis Watch Co. Porto CovovsSpinnaker Tesei Mille Metri 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
Tesei Mille Metri GMT
SpinnakerTesei Mille Metri GMT
MSRP $559

At a glance

10 of 29 specs differ
Diameter
Porto Covo40mm
Tesei Mille Metri GMT44mm
Power Reserve
Porto Covo40h
Tesei Mille Metri GMT40h
Water Resistance
Porto Covo300m
Tesei Mille Metri GMT1,000m
MSRP
Porto Covo$415
Tesei Mille Metri GMT$559

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
40mm
44mm
Thickness
11.6mm
16mm
Lug-to-Lug
42.5mm
52mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
1000m

Crystal & Dial

1 specs
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9039
Seiko NH34A

Pricing

1 specs
MSRP
$415
$559

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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 Tesei Mille Metri GMT

The Spinnaker Fleuss Midnight Black features a reliable and accurate Japanese TMI NH35 Automatic Movement with 3 Hands and Date. A potential drawback is the watch's relatively low 15 ATM water-resistance rating compared to other watches in its class. Reviewers disagree on the watch's suitability for larger wrists, with one reviewer noting a 43mm diameter and 51mm lug-to-lug fit, while the other mentions a 51mm lug-to-lug measurement.

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