Side by side

Borealis Watch Co. Estoril 300 GMTvsCitizen Promaster Diver Automatic

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
Promaster Diver Automatic
CitizenPromaster Diver Automatic
MSRP $469

At a glance

9 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Promaster Diver Automatic44mm
Power Reserve
Estoril 300 GMT40h
Promaster Diver Automatic40h
Water Resistance
Estoril 300 GMT300m
Promaster Diver Automatic200m
MSRP
Estoril 300 GMT$600
Promaster Diver Automatic$469

Full specifications

Case

5 specs
Diameter
41.50mm
44mm
Thickness
13.5mm
12mm
Lug-to-Lug
47mm
46mm
Lug Width
20mm
20mm
Water Resistance
300m
200m

Crystal & Dial

2 specs
Dial Color
Black
Blue
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9075
8204

Pricing

1 specs
MSRP
$600
$469

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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.

Citizen Promaster Diver Automatic

Owners widely praise the Citizen Promaster Diver Automatic for its lightweight titanium build, comfortable wear, and good specifications at its price point, with one owner highlighting its accuracy and dynamic dial made from recycled materials. Some users find the bezel action spongy and the bracelet subpar, while others note the overall finish is basic due to the brushed titanium. A reviewer also points out a preference for sapphire crystal and ceramic bezel inserts. On balance, owners rate the Citizen Promaster Diver Automatic highly for its value proposition as an affordable, lightweight, and accurate dive watch.

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