Side by side

Borealis Watch Co. Estoril 300 GMTvsSternglas Hamburg Chrono

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 Chrono
SternglasHamburg Chrono
MSRP $377

At a glance

13 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Hamburg Chrono42mm
Power Reserve
Estoril 300 GMT40h
Hamburg Chrono
Water Resistance
Estoril 300 GMT300m
Hamburg Chrono50m
MSRP
Estoril 300 GMT$600
Hamburg Chrono$377

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
41.50mm
42mm
Thickness
13.5mm
9.3mm
Lug-to-Lug
47mm
46mm
Lug Width
20mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Black
Lume
BGW9
None

Movement

4 specs
Caliber
Miyota 9075
Seiko TMI VK64 Mecha-Quartz
Type
Automatic
Quartz
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$600
$377

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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 Chrono

Owners widely praise the Sternglas Hamburg Chrono for its visually pleasing design, comfortable lightweight wear, and excellent timekeeping, with specific appreciation for details like the orange date window frame and overall value for the price. Some community members find the Regatta design busy and question the VK64 movement's lack of a running second hand, though others defend its unique, colorful aesthetic. One commenter notes the significant margin between manufacturing cost and retail price. On balance, owners rate the Sternglas Hamburg Chrono highly for its design details and value at its price point.

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