Which is bigger, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Beaufort Seatrekker?

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm wears larger at 41mm versus 39mm for the Beaufort Seatrekker — a 2mm difference across the dial.

Which has better water resistance, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Beaufort Seatrekker?

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is rated to 300m versus 200m for the Beaufort Seatrekker.

What movement does the Marathon OSAR-D (Original SAR with Date) Automatic 41mm run compared to the Beaufort Seatrekker?

Both watches run automatic movements — the Marathon OSAR-D (Original SAR with Date) Automatic 41mm uses the Sellita SW220-1 and the Beaufort Seatrekker uses the Miyota 9039.

Side by side

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

Q: Which has a longer power reserve, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Beaufort Seatrekker?

The Beaufort Seatrekker carries a 42-hour power reserve against 40 hours on the Marathon OSAR-D (Original SAR with Date) Automatic 41mm.

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

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

41mm-original-sar-w-date-osar-d

MSRP $1,800

seatrekker-blue

At a glance

12 of 29 specs differ

Diameter

OSAR-D (Original SAR with Date) Automatic 41mm41mm

Seatrekker39mm

Power Reserve

OSAR-D (Original SAR with Date) Automatic 41mm40h

Seatrekker42h

Water Resistance

OSAR-D (Original SAR with Date) Automatic 41mm300m

Seatrekker200m

MSRP

OSAR-D (Original SAR with Date) Automatic 41mm$1,800

Seatrekker—

Full specifications

Case

7 specs

Crystal & Dial

2 specs

Dial Color

Black

Blue

Lume

None

C3 Super-LumiNova applied to indices and hands for low-light readability.

Movement

2 specs

Caliber

Sellita SW220-1

Miyota 9039

Power Reserve

40h

42h

Pricing

1 specs

MSRP

$1,800

—

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

At a glance

Full specifications

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