Side by side

Borealis Watch Co. Estoril 300 GMTvsIslander Islander Republic Traveler GMT Watch with Black Dial #ISL-276

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
Islander Republic Traveler GMT Watch with Black Dial #ISL-276
IslanderIslander Republic Traveler GMT Watch with Black Dial #ISL-276
MSRP $695

At a glance

17 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Islander Republic Traveler GMT Watch with Black Dial #ISL-27640mm
Power Reserve
Estoril 300 GMT40h
Islander Republic Traveler GMT Watch with Black Dial #ISL-276
Water Resistance
Estoril 300 GMT300m
Islander Republic Traveler GMT Watch with Black Dial #ISL-276200m
MSRP
Estoril 300 GMT$600
Islander Republic Traveler GMT Watch with Black Dial #ISL-276$695

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
41.50mm
40mm
Thickness
13.5mm
13.1mm
Lug-to-Lug
47mm
46.5mm
Lug Width
20mm
20mm
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid
Screw-down

Crystal & Dial

4 specs
AR Coating
Inner
Underside
Dial Color
Black
Indices
Applied
Lume
BGW9
None

Movement

4 specs
Type
Automatic
Manual
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$600
$695

Follow this matchup

Get a note when Borealis Watch Co. Estoril 300 GMT vs Islander Republic Traveler GMT Watch with Black Dial #ISL-276 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. 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.

Islander Republic Traveler GMT Watch with Black Dial #ISL-276

Owners widely praise the Islander Republic Traveler GMT Watch with Black Dial #ISL-276 for its excellent case finishing and build quality, featuring applied indices and a matching date wheel. The watch is noted for wearing well on the wrist with ample micro-adjustment options for a comfortable fit, and it is running at +2 seconds per day out of the box, powered by an SW330-2 movement. Overall, owners rate the Islander Republic Traveler GMT Watch with Black Dial #ISL-276 highly for its finishing and wearability 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.