Side by side

Borealis Watch Co. Estoril 300 GMTvsCWC E9 Automatic Diver 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
E9 Automatic Diver Watch
CWCE9 Automatic Diver Watch
MSRP $1,391

At a glance

8 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
E9 Automatic Diver Watch41mm
Power Reserve
Estoril 300 GMT40h
E9 Automatic Diver Watch40h
Water Resistance
Estoril 300 GMT300m
E9 Automatic Diver Watch300m
MSRP
Estoril 300 GMT$600
E9 Automatic Diver Watch$1,391

Full specifications

Case

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

Crystal & Dial

2 specs
Dial Color
Black
CWC E9 Automatic Diver Watch (SF300-E9 AS120)
Lume
BGW9
Super-LumiNova

Movement

1 specs
Caliber
Miyota 9075
Sellita SW200-1

Pricing

1 specs
MSRP
$600
$1,391

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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 E9 Automatic Diver Watch

Owners widely praise the CWC E9 Automatic Diver Watch for its military-spec toughness and satisfyingly easy-to-wind crown, with one owner calling it a perfect reissue due to its thin case, small size, and legibility. Some owners appreciate its durability and value as a beater or summer watch, noting its solid bars are a military requirement and highlighting its significant wrist presence and unique "Jolly Roger" dial design. Critics find the CWC E9 Automatic Diver Watch overpriced for its mineral crystal and 60-click bezel, despite its military heritage and HAQ movement, and its luminous paint is noted as low glow. Overall, owners rate the CWC E9 Automatic Diver Watch highly for its military-spec toughness and wrist presence, despite some reservations about its value proposition.

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