Side by side

Astor + Banks Sea Ranger M2vsBorealis Watch Co. Estoril 300 GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Sea Ranger M2
Astor + BanksSea Ranger M2
MSRP $1,149
Estoril 300 GMT
Borealis Watch Co.Estoril 300 GMT
MSRP $600

At a glance

9 of 29 specs differ
Diameter
Sea Ranger M240mm
Estoril 300 GMT41.50mm
Power Reserve
Sea Ranger M240h
Estoril 300 GMT40h
Water Resistance
Sea Ranger M2300m
Estoril 300 GMT300m
MSRP
Sea Ranger M2$1,149
Estoril 300 GMT$600

Full specifications

Case

5 specs
Diameter
40mm
41.50mm
Thickness
12.5mm
13.5mm
Lug-to-Lug
45.5mm
47mm
Lug Width
20mm
20mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

2 specs
Dial Color
Tobacco
Black
Lume
None
BGW9

Movement

1 specs
Caliber
La Joux-Perret G100
Miyota 9075

Pricing

1 specs
MSRP
$1,149
$600

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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.

Astor + Banks Sea Ranger M2

The Astor + Banks Sea Ranger M2 is widely praised for its balanced design, excellent legibility, and strong GADA (go-anywhere, do-anything) capabilities, featuring 300m water resistance and a scratch-resistant coating. Reviewers note its comfortable 40mm case size and good lume, though one source describes it as good but not great. The movement is a Sellita SW200 adjusted by the brand, with accuracy reported around ±8 seconds per day. The pre-order price is $650, with a standard price of $850. On balance, reviewers find the Astor + Banks Sea Ranger M2 to be a compelling option due to its functional design and robust specifications.

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.

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