Side by side

Borealis Watch Co. Porto CovovsOak & Oscar The Jackson Big Eye

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
The Jackson Big Eye
Oak & OscarThe Jackson Big Eye
MSRP $3,150

At a glance

17 of 29 specs differ
Diameter
Porto Covo40mm
The Jackson Big Eye40mm
Power Reserve
Porto Covo40h
The Jackson Big Eye60 hoursh
Water Resistance
Porto Covo300m
The Jackson Big Eye50m
MSRP
Porto Covo$415
The Jackson Big Eye$3,150

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
40mm
40mm
Thickness
11.6mm
14mm
Lug-to-Lug
42.5mm
46.4mm
Lug Width
20mm
20mm
Finish
Brushed and polished
Brushed
Water Resistance
300m
50m

Crystal & Dial

5 specs
Crystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Black
White
Indices
Applied
Baton
Lume
BGW9
Super-LumiNova

Movement

4 specs
Caliber
Miyota 9039
Eterna Caliber 39 (Cal. 3907M)
Type
Automatic
Manual
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
60 hoursh

Pricing

1 specs
MSRP
$415
$3,150

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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.

Oak & Oscar The Jackson Big Eye

Oak & Oscar The Jackson Big Eye is praised for its balanced design and fine details, featuring a prominent "Big Eye" 30-minute sub-register for improved readability, reminiscent of vintage chronographs. It is powered by the Eterna EMC 3907M manual wind movement with a 60-hour power reserve, column wheel, and flyback function, housed in a 40mm stainless steel case. This limited edition of 50 pieces was priced at $3,150 and included two Horween leather straps and a wallet. On balance, reviewers highlight the Jackson Big Eye's enthusiast-spec chronograph function and readable subdial as key strengths.

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