Side by side

Borealis Watch Co. Porto CovovsHamilton Jazzmaster Thinline Auto

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 Thinline Auto
HamiltonJazzmaster Thinline Auto
MSRP $1,145

At a glance

11 of 29 specs differ
Diameter
Porto Covo40mm
Jazzmaster Thinline Auto40mm
Power Reserve
Porto Covo40h
Jazzmaster Thinline Auto42h
Water Resistance
Porto Covo300m
Jazzmaster Thinline Auto50m
MSRP
Porto Covo$415
Jazzmaster Thinline Auto$1,145

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
40mm
Thickness
11.6mm
8.45mm
Lug-to-Lug
42.5mm
46mm
Lug Width
20mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Black
Beige
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9039
2892-A2
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$415
$1,145

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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 Thinline Auto

Owners widely praise the Hamilton Jazzmaster Thinline Auto for its gorgeous, stunning, and captivating dials, particularly the champagne and burgundy variants, and its thin, comfortable profile, often noted at around 7mm to 8.4mm, making it ideal for wearability under shirt cuffs. The ETA 2892 movement is considered a strong value, though some owners report the rotor can be noisy and the winding feel unrefined, while others find the small crown difficult to manipulate. The absence of a second hand is polarizing, with some appreciating the simplicity and ease of setting, while others miss its presence. Overall, owners rate the Hamilton Jazzmaster Thinline Auto highly for its attractive, thin design and dial beauty at its price point.

From video reviewers

The slim case profile and affordable price point are consistently praised. Reviewers noted the absence of a second hand.

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