Side by side

Borealis Watch Co. Estoril 300 GMTvsHamilton American Classic Intra-Matic Auto 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

At a glance

11 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
American Classic Intra-Matic Auto Chrono40mm
Power Reserve
Estoril 300 GMT40h
American Classic Intra-Matic Auto Chrono60h
Water Resistance
Estoril 300 GMT300m
American Classic Intra-Matic Auto Chrono100m
MSRP
Estoril 300 GMT$600
American Classic Intra-Matic Auto Chrono$2,645

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
41.50mm
40mm
Thickness
13.5mm
14.45mm
Lug-to-Lug
47mm
46mm
Lug Width
20mm
20mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
White
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9075
H-31
Power Reserve
40h
60h

Pricing

1 specs
MSRP
$600
$2,645

Follow this matchup

Get a note when Borealis Watch Co. Estoril 300 GMT vs Hamilton American Classic Intra-Matic Auto Chrono gets more votes, a community discussion, or a price drop. No account needed.

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 American Classic Intra-Matic Auto Chrono

Owners widely praise the Hamilton American Classic Intra-Matic Auto Chrono for its historically significant retro design, clean panda dial, and value, with many noting its comfortable wearability and how it garners compliments. Reviewers and owners alike highlight its attractive dial with well-placed sub-registers and polished indices, evoking a vintage charm. Some owners find the 14mm+ case thickness substantial, though others note it wears smaller than expected and fits under shirt cuffs. The H-31 movement's rotor is described as spinny by one owner, and accuracy figures range from +3 to +8 seconds per day, with one owner noting the OEM strap is utilitarian. On balance, owners and reviewers rate the Hamilton American Classic Intra-Matic Auto Chrono highly for its vintage aesthetic and value proposition.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.