Borealis Watch Co. Porto CovovsCWC (Cabot Watch Company) RN81 Diver Automatic Watch

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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.

Porto Covo

RN81 Diver Automatic Watch
Diameter
40mm
41mm
Lug-to-Lug
42.5mm
lowest
47mm
Thickness
12.3mm
lowest
12.7mm
Water Resistance
300m
300m
MSRP
$350
lowest
$2,858
Movement
Sellita SW200-1
Sellita SW200-1
Case
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Borealis Porto Covo for its exceptional value and unique design elements, particularly the "floating" or elevated hour markers that cast shadows. The watch is considered versatile for everyday and business-casual wear, and some owners view it as their ultimate water-resistant watch. One reviewer notes the striking orange Cerakote case and custom hour markers, though the black lume is described as subtle. The Borealis Porto Covo is priced around $335 to $350, with one example selling for $350 in excellent condition. On balance, owners and reviewers rate the Borealis Porto Covo highly for its distinctive design and strong value proposition.
Owners widely praise the CWC (Cabot Watch Company) RN81 Diver Automatic Watch for its robust build and preferred dial layout, featuring an iconic big triangle and sword hands reminiscent of the 1980 original. The bezel action is described as nice and chunky, and the case wears beautifully. Some reviewers note the polished case sides and "faux patina" lume color as unusual or slightly glossy for a military-issued watch, and fixed springbars are flagged as a potential drawback. Accuracy varies, with one owner reporting it running 3 seconds fast per 24 hours. On balance, owners and reviewers appreciate the CWC (Cabot Watch Company) RN81 Diver Automatic Watch for its faithful homage design and solid construction, despite some reservations about its finishing and price point.
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