Side by side

Borealis Watch Co. Porto CovovsCWC E9 Quartz Diver Watch

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
E9 Quartz Diver Watch
CWCE9 Quartz Diver Watch
MSRP $749

At a glance

9 of 29 specs differ
Diameter
Porto Covo40mm
E9 Quartz Diver Watch41mm
Power Reserve
Porto Covo40h
E9 Quartz Diver Watch40h
Water Resistance
Porto Covo300m
E9 Quartz Diver Watch300m
MSRP
Porto Covo$415
E9 Quartz Diver Watch$749

Full specifications

Case

4 specs
Diameter
40mm
41mm
Thickness
11.6mm
12mm
Lug-to-Lug
42.5mm
47mm
Lug Width
20mm
20mm

Crystal & Dial

2 specs
Dial Color
Black
CWC E9 Quartz Diver Watch (E9 QS120)
Lume
BGW9
Super-LumiNova

Movement

2 specs
Caliber
Miyota 9039
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$415
$749

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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.

CWC E9 Quartz Diver Watch

The CWC E9 Quartz Diver Watch is praised for its historical significance, unique Jolly Roger dial, and military-spec build. Owners report it is thin, small, very legible, and has a satisfyingly easy-to-wind crown, with some noting its accuracy and clean lume application. However, the luminous paint on the Jolly Roger is described as low glow, and one owner reported their T20 model had an inaccurate quartz movement and a soft acrylic crystal that scratches easily. Some find the Jolly Roger design "out there," while others like its unique aesthetic. Some feel it is overpriced for its components, particularly the standard Ronda movement. Overall, owners rate the CWC E9 Quartz Diver Watch highly for its unique aesthetic and military-inspired build.

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