Side by side

Borealis Watch Co. Estoril 300 GMTvsSternglas Lumatik

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
Lumatik
SternglasLumatik
MSRP $539

At a glance

12 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Lumatik38mm
Power Reserve
Estoril 300 GMT40h
Lumatik60h
Water Resistance
Estoril 300 GMT300m
Lumatik50m
MSRP
Estoril 300 GMT$600
Lumatik$539

Full specifications

Case

6 specs
Category
Diver
Sport
Diameter
41.50mm
38mm
Thickness
13.5mm
12mm
Lug-to-Lug
47mm
43mm
Lug Width
20mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Black
Lume
BGW9
Luminova weiß und orange

Movement

3 specs
Caliber
Miyota 9075
Miyota 8315
Power Reserve
40h
60h
Jewels
25

Pricing

1 specs
MSRP
$600
$539

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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 Lumatik

Owners praise the Sternglas Lumatik for its playful Bauhaus design, fresh color palette, and unique bicolored lume. Reviewers highlight its comfortable 38mm case and a 60-hour power reserve. The Miyota 8315 movement is noted as less robust than premium options. On balance, owners and reviewers rate the Sternglas Lumatik highly for its fun design and distinctive lume at its price point.

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