Side by side

Borealis Watch Co. Estoril 300 GMTvsSternglas Naos Solar

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
Naos Solar
SternglasNaos Solar
MSRP $323

At a glance

13 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Naos Solar38mm
Power Reserve
Estoril 300 GMT40h
Naos Solar
Water Resistance
Estoril 300 GMT300m
Naos Solar50m
MSRP
Estoril 300 GMT$600
Naos Solar$323

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
41.50mm
38mm
Thickness
13.5mm
10mm
Lug-to-Lug
47mm
42mm
Lug Width
20mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Black
Lume
BGW9
Luminova Punkten

Movement

4 specs
Caliber
Miyota 9075
Seiko VJ76
Type
Automatic
Solar
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$600
$323

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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.

Sternglas Naos Solar

Owners widely praise the Sternglas Naos Solar for its elegant Bauhaus-inspired minimalist dial, slim profile, and value for money. The scratch-resistant curved sapphire crystal and functional date mechanism are noted as durable features, with one owner reporting good wear over a year. The solar power and accuracy are highlighted as practical advantages over automatic movements, which some find loud. However, opinions are split, with some owners finding the watch underwhelming and cheap-looking, like a toy, while others love its appearance in person and its clean, appealing design as a smartwatch alternative. The stock leather strap is described as decent but basic and potentially short for larger wrists, with one owner advising a third-party replacement for durability. One owner of a different variant noted the date font is too small to be useful.

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