Side by side

Borealis Watch Co. Estoril 300 GMTvsSpinnaker Bradner 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
Bradner GMT
SpinnakerBradner GMT
MSRP $299

At a glance

11 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Bradner GMT42mm
Power Reserve
Estoril 300 GMT40h
Bradner GMT40h
Water Resistance
Estoril 300 GMT300m
Bradner GMT180m
MSRP
Estoril 300 GMT$600
Bradner GMT$299

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
41.50mm
42mm
Thickness
13.5mm
15mm
Lug-to-Lug
47mm
50mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
180m

Crystal & Dial

2 specs
Dial Color
Black
Brown
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9075
Seiko NH34A

Pricing

1 specs
MSRP
$600
$299

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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.

Spinnaker Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

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