Side by side

Borealis Watch Co. Estoril 300 GMTvsHamilton Jazzmaster Thinline Small Second Quartz

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

At a glance

11 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
Jazzmaster Thinline Small Second Quartz40mm
Power Reserve
Estoril 300 GMT40h
Jazzmaster Thinline Small Second Quartz40h
Water Resistance
Estoril 300 GMT300m
Jazzmaster Thinline Small Second Quartz50m
MSRP
Estoril 300 GMT$600
Jazzmaster Thinline Small Second Quartz$745

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
41.50mm
40mm
Thickness
13.5mm
7.35mm
Lug-to-Lug
47mm
46mm
Lug Width
20mm
20mm
Water Resistance
300m
50m

Crystal & Dial

2 specs
Dial Color
Black
Grey
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9075
980.163
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$600
$745

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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.

Hamilton Jazzmaster Thinline Small Second Quartz

Owners widely praise the Hamilton Jazzmaster Thinline Small Second Quartz for its excellent value around $300, thin profile at 7mm to 8.4mm, and clean dial design with superb applied hour numerals and dauphine hands. One owner finds its champagne dial particularly upscale. However, the lume is considered terrible, barely lasting a few minutes, and the crown is noted as very small and difficult to manipulate. On balance, owners rate the Hamilton Jazzmaster Thinline Small Second Quartz highly for its thinness and clean dial design at the price.

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