Which is cheaper, the Marathon Arctic OSAR 46mm Automatic or the Grand Seiko SLGW003?

At MSRP the Marathon Arctic OSAR 46mm Automatic is the cheaper of the two at $2,500, against $11,600 for the Grand Seiko SLGW003 — a $9,100 gap before any retailer discounting.

Which is bigger, the Marathon Arctic OSAR 46mm Automatic or the Grand Seiko SLGW003?

The Marathon Arctic OSAR 46mm Automatic wears larger at 46mm versus 38.6mm for the Grand Seiko SLGW003 — a 7.4mm difference across the dial.

Which has better water resistance, the Marathon Arctic OSAR 46mm Automatic or the Grand Seiko SLGW003?

The Marathon Arctic OSAR 46mm Automatic is rated to 300m versus 30m for the Grand Seiko SLGW003.

Which has a longer power reserve, the Marathon Arctic OSAR 46mm Automatic or the Grand Seiko SLGW003?

The Grand Seiko SLGW003 carries a 80-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 SLGW003?

The Marathon Arctic OSAR 46mm Automatic runs a automatic caliber (Sellita SW220-1), while the Grand Seiko SLGW003 runs a manual (9SA4).

Side by side

Marathon Arctic OSAR 46mm AutomaticvsGrand Seiko SLGW003

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 SLGW003

slgw003g

MSRP $11,600

At a glance

13 of 29 specs differ

Diameter

Arctic OSAR 46mm Automatic46mm

SLGW00338.6mm

Power Reserve

Arctic OSAR 46mm Automatic40h

SLGW00380h

Water Resistance

Arctic OSAR 46mm Automatic300m

SLGW00330m

MSRP

Arctic OSAR 46mm Automatic$2,500

SLGW003$11,600

Full specifications

Case

7 specs

Crystal & Dial

2 specs

AR Coating

Inner

Yes

Dial Color

White

Black

Movement

3 specs

Caliber

Sellita SW220-1

9SA4

Type

Automatic

Manual

Power Reserve

40h

80h

Pricing

1 specs

MSRP

$2,500

$11,600

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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.

Reddit·3

A Blog to Watch

Grand Seiko SLGW003

The Grand Seiko SLGW003 is praised for its comfortable, lightweight Brilliant Hard Titanium case, meticulous finishing, and a clean, modern dial. Reviewers highlight the new 9SA4 manual-wind movement, noting its attractive finishing, 80-hour power reserve, and accuracy of -3/+5 seconds per day. It is considered a versatile dress watch blending vintage and future Grand Seiko spirit. The €11,700 price is noted as expensive, with some questioning its value. Overall, reviewers rate the Grand Seiko SLGW003 highly for its elegant design and impressive manual-wind movement at its flagship price point.

Fratello·2

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