Side by side

Borealis Watch Co. Porto CovovsYema Navygraf Marine Nationale Femme

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 Femme
YemaNavygraf Marine Nationale Femme
MSRP $399

At a glance

11 of 29 specs differ
Diameter
Porto Covo40mm
Navygraf Marine Nationale Femme34mm
Power Reserve
Porto Covo40h
Navygraf Marine Nationale Femme40h
Water Resistance
Porto Covo300m
Navygraf Marine Nationale Femme100m
MSRP
Porto Covo$415
Navygraf Marine Nationale Femme$399

Full specifications

Case

6 specs
Diameter
40mm
34mm
Thickness
11.6mm
10.3mm
Lug-to-Lug
42.5mm
Lug Width
20mm
16mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
Standard
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9039
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$415
$399

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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 Femme

The Yema Navygraf Marine Nationale Femme is praised for its clean dial, good bezel action, and robust build for daily wear, with its 39mm case noted as impressively thin at 11mm for 300m water resistance. Owners report accuracy averaging +6 seconds per day. One owner notes sharp edges and a slight rattle on the steel bracelet. The CMM.10 automatic movement offers a 70-hour power reserve. On balance, owners value the Yema Navygraf Marine Nationale Femme for its design and robust build at its price point, despite some concerns about accuracy and bracelet finishing.

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