Side by side

Borealis Watch Co. Estoril 300 GMTvsFears Onyx (collective Horology)

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
Onyx (collective Horology)
FearsOnyx (collective Horology)
MSRP $2,833

At a glance

12 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Onyx (collective Horology)39.5mm
Power Reserve
Estoril 300 GMT40h
Onyx (collective Horology)40h
Water Resistance
Estoril 300 GMT300m
Onyx (collective Horology)15m
MSRP
Estoril 300 GMT$600
Onyx (collective Horology)$2,833

Full specifications

Case

7 specs
Category
Diver
Sport
Diameter
41.50mm
39.5mm
Thickness
13.5mm
20mm
Lug-to-Lug
47mm
46.95mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
15m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Black
Onyx (Collective Horology)
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9075
La Joux-Perret G101

Pricing

1 specs
MSRP
$600
$2,833

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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.

Fears Onyx (collective Horology)

Owners widely praise the Fears Onyx (collective Horology) for its exquisite glossy black onyx dial, which displays microscopic striations under magnification. Reviewers note its thin case, under 10.5mm, and a balanced sporty-dressy aesthetic. Water resistance is rated at 150m by one source and 100m by another, and the bracelet features on-the-fly micro-adjustment. Some owners find the 39.5mm diameter slightly large for the style, and one source suggests it doesn't represent top value, though it remains competitive. Overall, owners rate the Fears Onyx highly for its unique stone dial and wearability.

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