Side by side

Borealis Watch Co. Estoril 300 GMTvsRedux Zero-Hour

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
Zero-Hour
ReduxZero-Hour

At a glance

11 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Zero-Hour39mm
Power Reserve
Estoril 300 GMT40h
Zero-Hour41h
Water Resistance
Estoril 300 GMT300m
Zero-Hour200m
MSRP
Estoril 300 GMT$600
Zero-Hour

Full specifications

Case

7 specs
Category
Diver
Diameter
41.50mm
39mm
Thickness
13.5mm
13.7mm
Lug-to-Lug
47mm
46.6mm
Lug Width
20mm
20mm
Material
Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

1 specs
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9075
Seiko NH35
Power Reserve
40h
41h

Pricing

1 specs
MSRP
$600

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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.

Redux Zero-Hour

Owners widely praise the Redux Courg Type 39MM for its robust, no-nonsense design and good overall quality, with a reliable Seiko NH53A movement keeping time well. The titanium case and crystal have shown scratch resistance, and the bezel action is described as tight by some. Reviewers note the proprietary RDXB1 or blue lume glows brilliantly, though briefly. Some owners flag the crown stem as flimsy and the unidirectional bezel as having some play. Overall, owners rate the Redux Courg Type 39MM highly for its functional tool-watch design and durable titanium construction.

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