Side by side

Borealis Watch Co. Porto CovovsYema Navygraf Marine Nationale GMT Paris

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
Navygraf Marine Nationale GMT Paris
YemaNavygraf Marine Nationale GMT Paris
MSRP $944

At a glance

10 of 29 specs differ
Diameter
Porto Covo40mm
Navygraf Marine Nationale GMT Paris39mm
Power Reserve
Porto Covo40h
Navygraf Marine Nationale GMT Paris40h
Water Resistance
Porto Covo300m
Navygraf Marine Nationale GMT Paris100m
MSRP
Porto Covo$415
Navygraf Marine Nationale GMT Paris$944

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
40mm
39mm
Thickness
11.6mm
Lug-to-Lug
42.5mm
Lug Width
20mm
20mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
Paris
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9039

Pricing

1 specs
MSRP
$415
$944

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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.

Yema Navygraf Marine Nationale GMT Paris

Owners widely praise the Yema Navygraf Marine Nationale GMT Paris as a standout design within the brand's recent offerings and a compelling alternative to higher-priced models, with one owner reporting zero issues. The steel version is a 39mm tool watch with pencil-shaped hands and white indices for legibility. It features Yema's YEMA2000 movement, offering ±10 seconds per day accuracy and a 42-hour power reserve, with 300-meter water resistance. Overall, owners rate the Yema Navygraf Marine Nationale GMT Paris highly for its appealing design and solid performance at its price point.

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