Which is cheaper, the Marathon Arctic OSAR 36mm Automatic or the Grand Seiko STGK003?

At MSRP the Marathon Arctic OSAR 36mm Automatic is the cheaper of the two at $1,200, against $31,200 for the Grand Seiko STGK003 — a $30,000 gap before any retailer discounting.

Which is bigger, the Marathon Arctic OSAR 36mm Automatic or the Grand Seiko STGK003?

The Marathon Arctic OSAR 36mm Automatic wears larger at 36mm versus 28.7mm for the Grand Seiko STGK003 — a 7.3mm difference across the dial.

Which has better water resistance, the Marathon Arctic OSAR 36mm Automatic or the Grand Seiko STGK003?

The Marathon Arctic OSAR 36mm Automatic is rated to 300m versus 100m for the Grand Seiko STGK003.

Which has a longer power reserve, the Marathon Arctic OSAR 36mm Automatic or the Grand Seiko STGK003?

The Grand Seiko STGK003 carries a 50-hour power reserve against 40 hours on the Marathon Arctic OSAR 36mm Automatic.

What movement does the Marathon Arctic OSAR 36mm Automatic run compared to the Grand Seiko STGK003?

Both watches run automatic movements — the Marathon Arctic OSAR 36mm Automatic uses the Sellita SW220-1 and the Grand Seiko STGK003 uses the 9S27.

Side by side

Marathon Arctic OSAR 36mm AutomaticvsGrand Seiko STGK003

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

Marathon Arctic OSAR 36mm Automatic

36mm-arctic-original-sar-w-date-on-3-piece-rubber-strap-kit-osar-d

MSRP $1,200

Grand Seiko STGK003

stgk003j

MSRP $31,200

At a glance

12 of 29 specs differ

Diameter

Arctic OSAR 36mm Automatic36mm

STGK00328.7mm

Power Reserve

Arctic OSAR 36mm Automatic40h

STGK00350h

Water Resistance

Arctic OSAR 36mm Automatic300m

STGK003100m

MSRP

Arctic OSAR 36mm Automatic$1,200

STGK003$31,200

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

White

Black

Movement

2 specs

Caliber

Sellita SW220-1

9S27

Power Reserve

40h

50h

Pricing

1 specs

MSRP

$1,200

$31,200

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