Side by side

Marathon Arctic OSAR 46mm AutomaticvsSeiko Diamond Collection

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
Diamond Collection
SeikoDiamond Collection
MSRP $475

At a glance

13 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Diamond Collection27mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Diamond Collection40h
Water Resistance
Arctic OSAR 46mm Automatic300m
Diamond Collection50m
MSRP
Arctic OSAR 46mm Automatic$2,500
Diamond Collection$475

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
46mm
27mm
Thickness
13mm
7.5mm
Lug-to-Lug
43.5mm
46mm
Lug Width
18mm
6mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
White
Black
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
Sellita SW220-1
V137
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$2,500
$475

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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.

Seiko Diamond Collection

Owners widely praise the Seiko Diamond Collection for its stunning beauty, particularly highlighting the 14 diamonds and the captivating mother-of-pearl dial, which reviewers note is difficult to photograph accurately. The watch is frequently cited as offering excellent value for its fit and finish, with specific features like sapphire crystal and 100m water resistance contributing to its appeal. One owner reports great durability and accuracy, with a solar charging reserve, though notes that the gold plating on the bracelet shows some fading from desk work. Overall, owners rate the Seiko Diamond Collection highly for its dazzling aesthetics and perceived value.

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