Side by side

Borealis Watch Co. Porto CovovsGlycine Airman Vintage The Chief GMT

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
Airman Vintage The Chief GMT
GlycineAirman Vintage The Chief GMT
MSRP $2,900

At a glance

17 of 29 specs differ
Diameter
Porto Covo40mm
Airman Vintage The Chief GMT40mm
Power Reserve
Porto Covo40h
Airman Vintage The Chief GMT48h
Water Resistance
Porto Covo300m
Airman Vintage The Chief GMT30m
MSRP
Porto Covo$415
Airman Vintage The Chief GMT$2,900

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
40mm
40mm
Thickness
11.6mm
12.25mm
Lug-to-Lug
42.5mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
White
Indices
Applied
Lume
BGW9
Luminous

Movement

3 specs
Caliber
Miyota 9039
SW330-2
Power Reserve
40h
48h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$415
$2,900

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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.

Glycine Airman Vintage The Chief GMT

Owners widely appreciate the Glycine Airman Vintage The Chief GMT for its historical significance and homage to the 1953 original. However, one owner notes criticism regarding the main hour hand being a 12-hour hand on a 24-hour dial, which hinders its intended use and compromises the bezel's functionality, leading to a return. On balance, owners value the Glycine Airman Vintage The Chief GMT for its historical connection, though a functional critique exists regarding its hour hand implementation.

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