Side by side

Borealis Watch Co. Estoril 300 GMTvsZelos Aurora Field

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
Aurora Field
ZelosAurora Field
MSRP $529

At a glance

11 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Aurora Field42mm
Power Reserve
Estoril 300 GMT40h
Aurora Field40h
Water Resistance
Estoril 300 GMT300m
Aurora Field200m
MSRP
Estoril 300 GMT$600
Aurora Field$529

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
41.50mm
42mm
Thickness
13.5mm
12.2mm
Lug-to-Lug
47mm
42mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

2 specs
Dial Color
Black
Bronze
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9075
Miyota 9039

Pricing

1 specs
MSRP
$600
$529

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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.

Zelos Aurora Field

The Zelos Aurora Field is praised for its unique and gorgeous dial, with the hammered teal bronze version and its great lume, particularly on the minute track, being singled out. Owners find the rubber strap comfortable and flexible with good hardware, and the watch is highlighted as feature-packed for its price point, including 200m water resistance, Grade 2 titanium, and 30,000 A/m anti-magnetism, with the new clasp noted as the best to date. However, some owners criticize sharp bracelet edges, an odd case shape with lugs that cause it to wear high, and dial text that appears cheap and plasticky, with one commenter finding the straight lugs look a bit off. Overall, owners rate the Zelos Aurora Field highly for its value and unique dial, despite some concerns about case and bracelet finishing.

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