Side by side

Borealis Watch Co. Estoril 300 GMTvsCWC GS Sapphire Military Green Watch

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
GS Sapphire Military Green Watch
CWCGS Sapphire Military Green Watch
MSRP $333

At a glance

11 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
GS Sapphire Military Green Watch36.5mm
Power Reserve
Estoril 300 GMT40h
GS Sapphire Military Green Watch40h
Water Resistance
Estoril 300 GMT300m
GS Sapphire Military Green Watch200m
MSRP
Estoril 300 GMT$600
GS Sapphire Military Green Watch$333

Full specifications

Case

6 specs
Category
Diver
Field
Diameter
41.50mm
36.5mm
Thickness
13.5mm
12mm
Lug-to-Lug
47mm
46mm
Lug Width
20mm
19mm
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Black
CWC GS Sapphire Military Green Watch, Black Case with Green Dial
Lume
BGW9
Super-LumiNova

Movement

1 specs
Caliber
Miyota 9075

Pricing

1 specs
MSRP
$600
$333

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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.

CWC GS Sapphire Military Green Watch

Owners widely praise the CWC GS Sapphire Military Green Watch for its grab-and-go quartz accuracy, sapphire crystal, screw-down crown and case back, and 200m water resistance, a unique combination for a field watch. The 36.5mm case is noted for its subtle size and solid build quality, fitting well with the brand's military heritage and functional, attractive simplicity. Some owners find the watch pricey, particularly with recent tariff and exchange rate increases, and fixed lugs can present a challenge for thicker straps. Overall, owners rate the CWC GS Sapphire Military Green Watch highly for its robust, practical field watch design and reliable quartz movement.

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