What movement does the Marathon OSAR-D (Original SAR with Date) Automatic 36mm run compared to the Spinnaker Dumas GMT?

Both watches run automatic movements — the Marathon OSAR-D (Original SAR with Date) Automatic 36mm uses the Sellita SW220-1 and the Spinnaker Dumas GMT uses the Seiko NH34A.

Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 36mmvsSpinnaker Dumas GMT

Q: Which is cheaper, the Marathon OSAR-D (Original SAR with Date) Automatic 36mm or the Spinnaker Dumas GMT?

At MSRP the Spinnaker Dumas GMT is the cheaper of the two at $399, against $1,200 for the Marathon OSAR-D (Original SAR with Date) Automatic 36mm — a $801 gap before any retailer discounting.

Q: Which is bigger, the Marathon OSAR-D (Original SAR with Date) Automatic 36mm or the Spinnaker Dumas GMT?

The Spinnaker Dumas GMT wears larger at 44mm versus 36mm for the Marathon OSAR-D (Original SAR with Date) Automatic 36mm — a 8mm difference across the dial.

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

Marathon OSAR-D (Original SAR with Date) Automatic 36mm

36mm-original-sar-w-date-osar-d

MSRP $1,200

Spinnaker Dumas GMT

dumas-gmt-automatic-ocean-blue-sp-5119-55

MSRP $399

At a glance

8 of 29 specs differ

Diameter

OSAR-D (Original SAR with Date) Automatic 36mm36mm

Dumas GMT44mm

Power Reserve

OSAR-D (Original SAR with Date) Automatic 36mm40h

Dumas GMT40h

Water Resistance

OSAR-D (Original SAR with Date) Automatic 36mm300m

Dumas GMT300m

MSRP

OSAR-D (Original SAR with Date) Automatic 36mm$1,200

Dumas GMT$399

Full specifications

Case

5 specs

Crystal & Dial

1 specs

Dial Color

Black

Blue

Movement

1 specs

Caliber

Sellita SW220-1

Seiko NH34A

Pricing

1 specs

MSRP

$1,200

$399

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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 36mm

Owners widely praise the Marathon OSAR-D (Original SAR with Date) Automatic 36mm for its exceptional legibility, featuring large hour markers and MaraGlo lume. The watch is noted for its comfortable wearability and competent Swiss-made Selitta SW200-1 automatic movement, offering 300-meter water resistance and a sapphire crystal. Some enthusiasts find the price of $1,380 USD on rubber to be excessive, particularly compared to past models or other brands, and the Spartan bracelet is described as lacking refinement. On balance, owners and reviewers find the Marathon OSAR-D Automatic 36mm a reliable and functional tool watch, with its clear dial and robust build being the primary draws.

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

Fratello

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