Side by side

Marathon Arctic OSAR 46mm AutomaticvsSpinnaker Bradner

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

Arctic OSAR 46mm Automatic
MarathonArctic OSAR 46mm Automatic
MSRP $2,500
Bradner
SpinnakerBradner
MSRP $179

At a glance

8 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Bradner42mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Bradner40h
Water Resistance
Arctic OSAR 46mm Automatic300m
Bradner180m
MSRP
Arctic OSAR 46mm Automatic$2,500
Bradner$179

Full specifications

Case

5 specs
Diameter
46mm
42mm
Thickness
13mm
15mm
Lug-to-Lug
43.5mm
50mm
Lug Width
18mm
22mm
Water Resistance
300m
180m

Crystal & Dial

1 specs
Dial Color
White
Tidal Blue

Movement

1 specs
Caliber
Sellita SW220-1
SII NH35A

Pricing

1 specs
MSRP
$2,500
$179

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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 Arctic OSAR 46mm Automatic

Owners widely praise the Marathon Arctic OSAR 46mm Automatic for its overbuilt toughness and industrial, instrument-like aesthetic, with some preferring the Arctic dial for legibility. One owner notes the automatic movement may be unnecessary for rough use compared to a quartz option. Reviewers mention the MaraGlo luminous paint and a Sellita SW200-1 automatic movement. Some owners question its rising price and luxury positioning, with one reporting poor lume and movement performance. Overall, owners value the Marathon Arctic OSAR 46mm Automatic for its robust build and utilitarian design.

Spinnaker Bradner

Owners widely praise the Spinnaker Bradner's vibrant dials and excellent lume on indices and bezel, with one owner noting comfortable wearability on a 7-inch wrist. Reviewers flag imprecise finishing on the minute ring and an inner bezel crown that rotates too easily, while some owners report the internal rotating bezel does not stay in position. The watch features a Seiko NH35 movement with a 41-hour power reserve and is priced around $390-$430 USD. On balance, owners and reviewers find the Spinnaker Bradner to be a fun, affordable diver, with its vibrant dials and strong lume being key selling points.

From video reviewers

The Spinnaker Atlantic Blue's reliable Seiko NH35 automatic movement is a key strength. The watch's lume performance is somewhat lacking, which may be a trade-off for some buyers. Reviewers disagree on the watch's bezel action, with one reviewer praising it as smooth and precise, while the other two do not mention it.

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