Side by side

Borealis Watch Co. Porto CovovsBremont Altitude 39 Date

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
Altitude 39 Date
BremontAltitude 39 Date
MSRP $4,250

At a glance

11 of 29 specs differ
Diameter
Porto Covo40mm
Altitude 39 Date39mm
Power Reserve
Porto Covo40h
Altitude 39 Date40h
Water Resistance
Porto Covo300m
Altitude 39 Date100m
MSRP
Porto Covo$415
Altitude 39 Date$4,250

Full specifications

Case

7 specs
Category
Diver
Pilot
Diameter
40mm
39mm
Thickness
11.6mm
11.19mm
Lug-to-Lug
42.5mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel (DLC coated)
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
Silver
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9039
BE-92AE

Pricing

1 specs
MSRP
$415
$4,250

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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.

Bremont Altitude 39 Date

Owners and reviewers widely praise the Bremont Altitude 39 Date as a sleek, legible, and everyday-suited pilot's watch, noting its comfortable 39mm 904L steel case and clean dial design. The La Joux-Perret G100 movement is recognized for its 68-hour power reserve and smooth winding feel. Some owners note the bracelet lacks micro-adjustments. On balance, the consensus is that the Bremont Altitude 39 Date is highly regarded for its refined finishing and wearability at 39mm.

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