Side by side

Borealis Watch Co. Porto CovovsHamilton Jazzmaster Performer Automatic

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
Jazzmaster Performer Automatic
HamiltonJazzmaster Performer Automatic
MSRP $1,245

At a glance

11 of 29 specs differ
Diameter
Porto Covo40mm
Jazzmaster Performer Automatic38mm
Power Reserve
Porto Covo40h
Jazzmaster Performer Automatic80h
Water Resistance
Porto Covo300m
Jazzmaster Performer Automatic100m
MSRP
Porto Covo$415
Jazzmaster Performer Automatic$1,245

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
38mm
Thickness
11.6mm
11.47mm
Lug-to-Lug
42.5mm
46mm
Lug Width
20mm
20mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
Blue
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9039
H-10
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$415
$1,245

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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.

Hamilton Jazzmaster Performer Automatic

Owners widely praise the Hamilton Jazzmaster Performer Automatic for its clean design, comfortable wearability, and impressive 80-hour power reserve, with accuracy averaging just over 2 seconds per day. Some owners note the bezel is non-functional, and one experienced an internal movement failure causing time jumps, though service resolved this. The 34mm variant is considered solid for smaller wrists due to its flatter crystal and reasonable lug-to-lug distance. On balance, owners and reviewers rate the Hamilton Jazzmaster Performer Automatic highly for its blend of style, comfort, and extended power reserve at its price point.

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