Side by side

Borealis Watch Co. Estoril 300 GMTvsGlycine Combat Sub Sport GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Estoril 300 GMT
Borealis Watch Co.Estoril 300 GMT
MSRP $600
Combat Sub Sport GMT
GlycineCombat Sub Sport GMT
MSRP $2,995

At a glance

17 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Combat Sub Sport GMT42mm
Power Reserve
Estoril 300 GMT40h
Combat Sub Sport GMT48h
Water Resistance
Estoril 300 GMT300m
Combat Sub Sport GMT200m
MSRP
Estoril 300 GMT$600
Combat Sub Sport GMT$2,995

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
41.50mm
42mm
Thickness
13.5mm
10.85mm
Lug-to-Lug
47mm
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 9075
SW330-2
Power Reserve
40h
48h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$600
$2,995

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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. Estoril 300 GMT

Owners widely praise the Borealis Watch Co. Estoril 300 GMT for its excellent value, robust build quality, and crisp dial, with reviewers highlighting its exceptionally bright BGW9 lume and dive-ready ceramic bezel. Some owners appreciate the brushed and polished finishes, though one owner noted a desire for a white-painted second hand. The included NATO strap is considered too thick with a loose weave, and the sapphire bezel insert is seen by some as a minor aesthetic departure from its inspirations. Overall, owners rate the Borealis Watch Co. Estoril 300 GMT highly for its impressive build quality and value.

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.

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