Side by side

Borealis Watch Co. Estoril 300 GMTvsCWC RN Quartz Divers Watch Mk.2, Matte Top

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
RN Quartz Divers Watch Mk.2, Matte Top
CWCRN Quartz Divers Watch Mk.2, Matte Top
MSRP $604

At a glance

10 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
RN Quartz Divers Watch Mk.2, Matte Top41mm
Power Reserve
Estoril 300 GMT40h
RN Quartz Divers Watch Mk.2, Matte Top40h
Water Resistance
Estoril 300 GMT300m
RN Quartz Divers Watch Mk.2, Matte Top300m
MSRP
Estoril 300 GMT$600
RN Quartz Divers Watch Mk.2, Matte Top$604

Full specifications

Case

4 specs
Diameter
41.50mm
41mm
Thickness
13.5mm
12mm
Lug-to-Lug
47mm
47mm
Lug Width
20mm
20mm

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Black
CWC RN Quartz Divers Watch Mk.2, Matte Top (RN300-MT QS120)
Lume
BGW9
Super-LumiNova

Movement

2 specs
Caliber
Miyota 9075
Ronda 517
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$600
$604

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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 RN Quartz Divers Watch Mk.2, Matte Top

Owners widely praise the CWC RN Quartz Divers Watch Mk.2, Matte Top for its excellent matte case finishing, precise seconds hand alignment, and dial reminiscent of vintage military watches. The Mk.2 upgrades, including a sapphire crystal, improved lume, and a precise 120-click bezel described as perfection with no play, are consistently highlighted as significant improvements over earlier versions. One owner noted the quartz movement gained 8 seconds over several months. Overall, owners rate the CWC RN Quartz Divers Watch Mk.2, Matte Top highly for its solid construction, military significance, and terrific value.

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