Borealis Watch Co. Porto CovovsMarathon Jeep Rubicon TSAR

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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

Marathon Jeep Rubicon TSAR at true scale

Jeep Rubicon TSAR

Diameter

40mm

41mm

Lug-to-Lug

42.5mm

lowest

48mm

Thickness

11.6mm

lowest

14mm

Water Resistance

300m

300m

MSRP

$350

lowest

$1,650

Movement

Miyota 9039

Swiss High-Torque Quartz

Case

4 specs
Diameter
40mm
41mm
Thickness
11.6mm
14mm
Lug-to-Lug
42.5mm
48mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Dial Color
n/a
Green
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9039
Swiss High-Torque Quartz

Pricing

1 specs
MSRP
$350
$1,650
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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.

Marathon Jeep Rubicon TSAR

The Marathon Jeep Rubicon TSAR is noted for its successful dual branding, with the "Jeep" designation prominent on the dial. Owners praise its toughness and wearability, with one owner reporting near-daily wear for 10 years on a 7" wrist with a flawless sapphire crystal. The watch features tritium gas tubes and Maraglo illumination, a 41mm steel case, and a Swiss Made Sellita SW200-1 automatic movement, priced at $1,500 USD. One owner experienced the 0-mark triangle detaching from the bezel after a decade of significant abuse, though the bezel action remained tight and solid. On balance, owners and reviewers rate the Marathon Jeep Rubicon TSAR highly for its robust build and comfortable wearability.