Side by side

Marathon Arctic OSAR 46mm AutomaticvsGrand Seiko SLGA015

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

Arctic OSAR 46mm Automatic
MarathonArctic OSAR 46mm Automatic
MSRP $2,500
SLGA015
Grand SeikoSLGA015
MSRP $12,600

At a glance

12 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
SLGA01543.8mm
Power Reserve
Arctic OSAR 46mm Automatic40h
SLGA015120h
Water Resistance
Arctic OSAR 46mm Automatic300m
SLGA015200m
MSRP
Arctic OSAR 46mm Automatic$2,500
SLGA015$12,600

Full specifications

Case

6 specs
Diameter
46mm
43.8mm
Thickness
13mm
13.8mm
Lug-to-Lug
43.5mm
51.5mm
Lug Width
18mm
23mm
Material
316L Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
White
Black

Movement

3 specs
Caliber
Sellita SW220-1
9RA5
Type
Automatic
Spring Drive
Power Reserve
40h
120h

Pricing

1 specs
MSRP
$2,500
$12,600

Follow this matchup

Get a note when Marathon Arctic OSAR 46mm Automatic vs Grand Seiko SLGA015 gets more votes, a community discussion, or a price drop. No account needed.

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.

Grand Seiko SLGA015

The Grand Seiko SLGA015 is widely praised for its exceptional accuracy, with owners reporting performance far exceeding the stated 10 seconds per month. The Spring Drive movement's smooth sweep and 5-day power reserve are also noted strengths, as is the lighter titanium case construction. However, some owners find the bracelet extension non-intuitive, and one noted the clasp scratched easily. The watch features a nature-inspired, wave-like dial texture. Overall, owners rate the Grand Seiko SLGA015 highly for its impressive accuracy and quality construction.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.