Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsBorealis Watch Co. Estoril 300 GMT

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

OSAR-D (Original SAR with Date) Automatic 41mm
MarathonOSAR-D (Original SAR with Date) Automatic 41mm
MSRP $1,800
Estoril 300 GMT
Borealis Watch Co.Estoril 300 GMT
MSRP $600

At a glance

8 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Estoril 300 GMT41.50mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Estoril 300 GMT40h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Estoril 300 GMT300m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Estoril 300 GMT$600

Full specifications

Case

5 specs
Diameter
41mm
41.50mm
Thickness
13mm
13.5mm
Lug-to-Lug
43.5mm
47mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

1 specs
Lume
None
BGW9

Movement

1 specs
Caliber
Sellita SW220-1
Miyota 9075

Pricing

1 specs
MSRP
$1,800
$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.

Marathon OSAR-D (Original SAR with Date) Automatic 41mm

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is noted for its highly legible white dial with applied hour markers and a functional date magnifier, emphasizing its tool-watch purpose. Its Swiss-made Sellita SW200-1 movement is considered reliable and serviceable. One reviewer found the bracelet lacked refinement and preferred the rubber strap option. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 41mm for its excellent legibility and robust movement.

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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