Borealis Watch Co. Porto CovovsFortis Marinemaster M-40

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Borealis Watch Co. Porto Covo at true scale

Porto Covo

Fortis Marinemaster M-40 at true scale

Marinemaster M-40

Diameter

40mm

40mm

Lug-to-Lug

42.5mm

n/a

Thickness

11.6mm

lowest

13mm

Water Resistance

300m

300m

Power Reserve

n/a

38h

MSRP

$350

lowest

$3,520

Movement

Miyota 9039

Sellita SW220-1

Case

3 specs
Thickness
11.6mm
13mm
Lug-to-Lug
42.5mm
n/a
Lug Width
20mm
21mm

Crystal & Dial

2 specs
Dial Color
n/a
Orange
Lume
BGW9
None

Movement

4 specs
Caliber
Miyota 9039
Sellita SW220-1
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
38h
Jewels
0
26

Pricing

1 specs
MSRP
$350
$3,520
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Borealis Watch Co. Porto Covo

Owners widely praise the Borealis Porto Covo for its unique floating indices, which create a striking 3D effect. Some owners find the 39mm case size appealing, while others wish for a larger 42mm option. The watch is priced around $395-$400, though some community members feel it does not offer good value compared to other options. One owner reported poor accuracy and a negative customer service experience. Overall, owners rate the Borealis Porto Covo highly for its distinctive dial design, despite some reservations on value and accuracy.

From video reviewers

The dial's unique "floating" indices are consistently praised as a standout feature, offering significant visual depth. The Miyota 9 series movement is a shared positive specification. No shared weaknesses were identified.

Fortis Marinemaster M-40

Owners widely praise the Fortis Marinemaster M-40 for its gorgeous appearance and strong wrist presence, noting its impressive lume. The watch comes with a bracelet and three rubber straps, including a deployant buckle. On balance, owners rate the Fortis Marinemaster M-40 highly for its aesthetic appeal and comprehensive strap package.

From video reviewers

The watch's Swiss Made construction and robust design are consistently praised. Reviewers noted the bracelet as a potential point of contention.

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