Side by side

Borealis Watch Co. Porto CovovsGlycine Airman No. 1 Purist

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 No. 1 Purist
GlycineAirman No. 1 Purist
MSRP $2,800

At a glance

17 of 29 specs differ
Diameter
Porto Covo40mm
Airman No. 1 Purist36mm
Power Reserve
Porto Covo40h
Airman No. 1 Purist48h
Water Resistance
Porto Covo300m
Airman No. 1 Purist30m
MSRP
Porto Covo$415
Airman No. 1 Purist$2,800

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
40mm
36mm
Thickness
11.6mm
11.6mm
Lug-to-Lug
42.5mm
Lug Width
20mm
20mm
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid

Crystal & Dial

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

Movement

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

Pricing

1 specs
MSRP
$415
$2,800

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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 No. 1 Purist

The Glycine Airman No. 1 Purist is praised as a faithful re-creation of a historical 24-hour watch, with one owner purchasing it for $620 and viewing it as a long-term keeper due to its heritage reissue status and vintage aesthetics. The 36mm size is noted as a conversation starter. However, the acrylic crystal is prone to scratching, with one example showing a small scratch over the date window. Some community members suggest pre-Invicta models may hold value better. Overall, owners appreciate the Glycine Airman No. 1 Purist for its authentic vintage appeal and unique dial, though the acrylic crystal requires careful handling.

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