Side by side

Borealis Watch Co. Porto CovovsHamilton Khaki Aviation Air Race 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
Khaki Aviation Air Race Auto
HamiltonKhaki Aviation Air Race Auto
MSRP $845

At a glance

10 of 29 specs differ
Diameter
Porto Covo40mm
Khaki Aviation Air Race Auto38mm
Power Reserve
Porto Covo40h
Khaki Aviation Air Race Auto80h
Water Resistance
Porto Covo300m
Khaki Aviation Air Race Auto50m
MSRP
Porto Covo$415
Khaki Aviation Air Race Auto$845

Full specifications

Case

6 specs
Category
Diver
Pilot
Diameter
40mm
38mm
Thickness
11.6mm
10.8mm
Lug-to-Lug
42.5mm
46mm
Lug Width
20mm
19mm
Water Resistance
300m
50m

Crystal & Dial

1 specs
Lume
BGW9
None

Movement

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

Pricing

1 specs
MSRP
$415
$845

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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 Khaki Aviation Air Race Auto

Owners widely praise the Hamilton Khaki Aviation Air Race Auto for its legibility and practicality, with some appreciating its countdown bezel and GMT pointer. However, opinions on its design are split, with some calling it a "Frankenstein" and disliking the skeleton hands, while others find the hands suitable for a pilot watch. One owner notes the lume is underwhelming and the 44mm size may be too large for some wrists. The original strap is also described as uncomfortable and prone to water stains. On balance, owners value the Hamilton Khaki Aviation Air Race Auto for its legibility and practical features, despite a polarizing design and some comfort concerns.

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