Side by side

Borealis Watch Co. Porto CovovsDOXA SUB 300T

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
SUB 300T
DOXASUB 300T
MSRP $2,190

At a glance

10 of 29 specs differ
Diameter
Porto Covo40mm
SUB 300T42.5mm
Power Reserve
Porto Covo40h
SUB 300T40h
Water Resistance
Porto Covo300m
SUB 300T1,200m
MSRP
Porto Covo$415
SUB 300T$2,190

Full specifications

Case

5 specs
Diameter
40mm
42.5mm
Thickness
11.6mm
12mm
Lug-to-Lug
42.5mm
46mm
Lug Width
20mm
20mm
Water Resistance
300m
1200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Black
Aquamarine
Lume
BGW9
Super-LumiNova

Movement

1 specs
Caliber
Miyota 9039

Pricing

1 specs
MSRP
$415
$2,190

Follow this matchup

Get a note when Borealis Watch Co. Porto Covo vs DOXA SUB 300T gets more votes, a community discussion, or a price drop. No account needed.

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.

DOXA SUB 300T

Owners widely praise the DOXA SUB 300T's functional and distinctive design, with reviewers highlighting its historical visibility and robust build. Legibility is consistently noted as excellent, with reviewers appreciating the functional no-decompression bezel and distinct hand shapes. The watch's accuracy is reported as good, with one owner seeing a 3-4 second daily gain, though the 38-hour power reserve is considered underwhelming by some at its price point. Criticisms include a stamped clasp that feels out of place and a bezel that may have lateral movement. The 42.5mm case is described as substantial and heavy, appearing larger due to extra width and making it unsuitable for dress shirts, a trade-off for its 1200-meter water resistance. On balance, owners and reviewers rate the DOXA SUB 300T highly for its unique design and robust dive watch capabilities.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.