Side by side

Borealis Watch Co. Porto CovovsHamilton American Classic Valiant 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
American Classic Valiant Auto
HamiltonAmerican Classic Valiant Auto
MSRP $645

At a glance

11 of 29 specs differ
Diameter
Porto Covo40mm
American Classic Valiant Auto34mm
Power Reserve
Porto Covo40h
American Classic Valiant Auto80h
Water Resistance
Porto Covo300m
American Classic Valiant Auto50m
MSRP
Porto Covo$415
American Classic Valiant Auto$645

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
34mm
Thickness
11.6mm
10.58mm
Lug-to-Lug
42.5mm
46mm
Lug Width
20mm
16mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Black
Silver
Lume
BGW9
None

Movement

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

Pricing

1 specs
MSRP
$415
$645

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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 American Classic Valiant Auto

Owners widely praise the Hamilton American Classic Valiant Auto for its classic design elements, such as the sunburst dial and Roman numerals, noting its suitability for everyday elegance and wearability under a cuff. One owner highlights the 39.5mm size and applied indices as a "hidden gem," while another appreciates the clean, simple design with thin Roman numerals. The watch is also commended for its comfortable bracelet and attractive lance hands, with confirmation that the bracelet is indeed changeable. Some owners note the date window's placement at three o'clock is a point of contention, and one owner reports the watch runs at approximately +6 seconds per day after ten years of intermittent use. On balance, owners rate the Hamilton American Classic Valiant Auto highly for its elegant, classic design and comfortable wearability at its price point.

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