Which is cheaper, the Marathon Arctic OSAR 46mm Automatic or the Grand Seiko SBGA384?

At MSRP the Marathon Arctic OSAR 46mm Automatic is the cheaper of the two at $2,500, against $29,500 for the Grand Seiko SBGA384 — a $27,000 gap before any retailer discounting.

Which is bigger, the Marathon Arctic OSAR 46mm Automatic or the Grand Seiko SBGA384?

The Marathon Arctic OSAR 46mm Automatic wears larger at 46mm versus 40mm for the Grand Seiko SBGA384 — a 6mm difference across the dial.

Which has better water resistance, the Marathon Arctic OSAR 46mm Automatic or the Grand Seiko SBGA384?

The Marathon Arctic OSAR 46mm Automatic is rated to 300m versus 100m for the Grand Seiko SBGA384.

Which has a longer power reserve, the Marathon Arctic OSAR 46mm Automatic or the Grand Seiko SBGA384?

The Grand Seiko SBGA384 carries a 72-hour power reserve against 40 hours on the Marathon Arctic OSAR 46mm Automatic.

What movement does the Marathon Arctic OSAR 46mm Automatic run compared to the Grand Seiko SBGA384?

The Marathon Arctic OSAR 46mm Automatic runs a automatic caliber (Sellita SW220-1), while the Grand Seiko SBGA384 runs a spring drive (9R15).

Side by side

Marathon Arctic OSAR 46mm AutomaticvsGrand Seiko SBGA384

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

Marathon Arctic OSAR 46mm Automatic

46mm-arctic-original-sar-w-date-on-3-piece-rubber-strap-kit-osar-d

MSRP $2,500

Grand Seiko SBGA384

sbga384g

MSRP $29,500

At a glance

13 of 29 specs differ

Diameter

Arctic OSAR 46mm Automatic46mm

SBGA38440mm

Power Reserve

Arctic OSAR 46mm Automatic40h

SBGA38472h

Water Resistance

Arctic OSAR 46mm Automatic300m

SBGA384100m

MSRP

Arctic OSAR 46mm Automatic$2,500

SBGA384$29,500

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

White

Black

Movement

3 specs

Caliber

Sellita SW220-1

9R15

Type

Automatic

Spring Drive

Power Reserve

40h

72h

Pricing

1 specs

MSRP

$2,500

$29,500

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