Side by side

Borealis Watch Co. Estoril 300 GMTvsTornek-Rayville CISO M38 Field

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
CISO M38 Field
Tornek-RayvilleCISO M38 Field
MSRP $695

At a glance

11 of 29 specs differ
Diameter
Estoril 300 GMT41.50mm
CISO M38 Field38mm
Power Reserve
Estoril 300 GMT40h
CISO M38 Field42h
Water Resistance
Estoril 300 GMT300m
CISO M38 Field100m
MSRP
Estoril 300 GMT$600
CISO M38 Field$695

Full specifications

Case

6 specs
Category
Diver
Diameter
41.50mm
38mm
Thickness
13.5mm
12.45mm
Lug-to-Lug
47mm
43.6mm
Lug Width
20mm
20mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
Superluminova

Movement

2 specs
Caliber
Miyota 9075
TMI NH36
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$600
$695

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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.

Tornek-Rayville CISO M38 Field

Owners widely report the Tornek-Rayville CISO M38 Field offers high overall quality with a comfortable bracelet featuring single-sided screw links. The watch exhibits minimal wear, with only hairline scratches and a faint, difficult-to-photograph bezel mark. On balance, owners value the Tornek-Rayville CISO M38 Field for its robust build and comfortable wearability.

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