Side by side

Borealis Watch Co. Porto CovovsHamilton Khaki Navy GMT 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 Navy GMT Auto
HamiltonKhaki Navy GMT Auto
MSRP $1,525

At a glance

10 of 29 specs differ
Diameter
Porto Covo40mm
Khaki Navy GMT Auto43mm
Power Reserve
Porto Covo40h
Khaki Navy GMT Auto80h
Water Resistance
Porto Covo300m
Khaki Navy GMT Auto300m
MSRP
Porto Covo$415
Khaki Navy GMT Auto$1,525

Full specifications

Case

5 specs
Category
Diver
GMT
Diameter
40mm
43mm
Thickness
11.6mm
13.9mm
Lug-to-Lug
42.5mm
52mm
Lug Width
20mm
22mm

Crystal & Dial

2 specs
Dial Color
Black
Silver
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9039
H-14
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$415
$1,525

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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 Navy GMT Auto

The Hamilton Khaki Navy GMT Auto is widely praised for its true GMT function and 80-hour power reserve, with owners noting its excellent quality for the price. Reviewers highlight its legible syringe hands and Arabic numerals, well-functioning inner bezel, and comfortable wearability due to its 12.5mm thickness and brushed case finishing. Some owners report minor cosmetic flaws like paint chips or scrapes, and accuracy figures vary, with one owner seeing -5 seconds per day and another noting +5 seconds per 24 hours. The 43mm case is 13.9mm thick, and while some find the slab-sided profile mitigates the perceived height, others note the lug-to-lug measurement can be a stumbling block. The movement is described as nicely decorated, though one owner notes a loud rotor sound, and the lack of AR coating on the sapphire crystal is a drawback for some.

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