Side by side

Borealis Watch Co. Porto CovovsGlycine Airman 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 GMT
GlycineAirman GMT
MSRP $1,295

At a glance

19 of 29 specs differ
Diameter
Porto Covo40mm
Airman GMT45mm
Power Reserve
Porto Covo40h
Airman GMT
Water Resistance
Porto Covo300m
Airman GMT200m
MSRP
Porto Covo$415
Airman GMT$1,295

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
40mm
45mm
Thickness
11.6mm
13mm
Lug-to-Lug
42.5mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Indices
Applied
Lume
BGW9
None

Movement

6 specs
Caliber
Miyota 9039
Type
Automatic
Quartz
Beat Rate
28,800 vph
Power Reserve
40h
Jewels
25
1
Complications
None
GMT

Pricing

1 specs
MSRP
$415
$1,295

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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 GMT

Owners widely appreciate the Glycine Airman GMT's ability to track three time zones with an easy-to-read dial layout. However, some owners find the GMT hand visually similar to the minute hand, suggesting a red paint for better distinction, a sentiment echoed by reviewers who note the thin, unlumed GMT hand can be hard to read against the black dial. One owner praises the 39mm sizing and 200m water resistance of a related model, noting its good build and finishing from when Glycine was independent. On balance, owners and reviewers find the Glycine Airman GMT offers practical multi-time zone tracking, though legibility of the GMT hand is a recurring point of discussion.

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