Side by side

Borealis Watch Co. Porto CovovsGlycine Combat Sub Sport 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
Combat Sub Sport GMT
GlycineCombat Sub Sport GMT
MSRP $2,995

At a glance

17 of 29 specs differ
Diameter
Porto Covo40mm
Combat Sub Sport GMT42mm
Power Reserve
Porto Covo40h
Combat Sub Sport GMT48h
Water Resistance
Porto Covo300m
Combat Sub Sport GMT200m
MSRP
Porto Covo$415
Combat Sub Sport GMT$2,995

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
40mm
42mm
Thickness
11.6mm
10.85mm
Lug-to-Lug
42.5mm
Lug Width
20mm
22mm
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Blue
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
$2,995

Follow this matchup

Get a note when Borealis Watch Co. Porto Covo vs Glycine Combat Sub Sport GMT gets more votes, a community discussion, or a price drop. No account needed.

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 Combat Sub Sport GMT

Owners widely praise the Glycine Combat Sub Sport GMT for its solid build, slim wearability, and value, with many noting its comfortable fit due to curved lugs and thin case. Reviewers highlight its classic design, unique dial, and legible date window, while some owners report excellent bezel action and accuracy under +1 second per day after regulation. A minor criticism is a slightly off-color lume pip on the chapter ring, and one owner notes sub-par lume and inconsistent power reserve not always reaching 42 hours. On balance, owners and reviewers rate the Glycine Combat Sub Sport GMT highly for its comfortable wearability and value at the price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.