Side by side

Borealis Watch Co. Estoril 300 GMTvsSternglas Hamburg Automatik

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
Hamburg Automatik
SternglasHamburg Automatik
MSRP $463

At a glance

12 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Hamburg Automatik42mm
Power Reserve
Estoril 300 GMT40h
Hamburg Automatik42h
Water Resistance
Estoril 300 GMT300m
Hamburg Automatik50m
MSRP
Estoril 300 GMT$600
Hamburg Automatik$463

Full specifications

Case

6 specs
Category
Diver
Sport
Diameter
41.50mm
42mm
Thickness
13.5mm
12mm
Lug-to-Lug
47mm
45mm
Lug Width
20mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Black
Lume
BGW9
Luminova

Movement

3 specs
Caliber
Miyota 9075
Miyota 8215
Power Reserve
40h
42h
Jewels
25

Pricing

1 specs
MSRP
$600
$463

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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 Hamburg Automatik

Owners praise the Sternglas Hamburg Automatik's handsome design and good build quality for the price. The watch features a gold PVD case and a matte blue dial with orange Super-LumiNova, and its 42mm diameter wears well due to a short lug-to-lug distance. The Miyota 8215 movement is accurate to -20/+40 seconds per day. On balance, reviewers and owners appreciate the Sternglas Hamburg Automatik for its unique design and value.

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