Side by side

Borealis Watch Co. Estoril 300 GMTvsBremont ALT1-C

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
ALT1-C
BremontALT1-C
MSRP $6,150

At a glance

11 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
ALT1-C43mm
Power Reserve
Estoril 300 GMT40h
ALT1-C40h
Water Resistance
Estoril 300 GMT300m
ALT1-C100m
MSRP
Estoril 300 GMT$600
ALT1-C$6,150

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
41.50mm
43mm
Thickness
13.5mm
16mm
Lug-to-Lug
47mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Black
Regular length (15cm - 19cm wrist size)
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9075
BE-50AE

Pricing

1 specs
MSRP
$600
$6,150

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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.

Bremont ALT1-C

Owners widely praise the Bremont ALT1-C for its flawless brushed case finish, attractive cream dial with excellent contrast from anthracite sub-dials, and comfortable, balanced wearability. The watch features a well-finished strap and a movement that is a joy to wind, with precise chronograph operation. Reviewers note refined feuille hands and polished Arabic numerals with a golden tinge, balancing ruggedness with elegance. The Bremont ALT1-C averages +3 seconds per day, though one reviewer flags its 16mm height as less than ideal for under-cuff wear and describes the date window as narrow. The modified Valjoux 7750 movement's rotor spin is noticeable. Overall, owners rate the Bremont ALT1-C highly for its refined aesthetics and enjoyable user experience.

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