Side by side

Marathon Arctic OSAR 36mm AutomaticvsSeiko Diamond Collection

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

Arctic OSAR 36mm Automatic
MarathonArctic OSAR 36mm Automatic
MSRP $1,200
Diamond Collection
SeikoDiamond Collection
MSRP $525

At a glance

11 of 29 specs differ
Diameter
Arctic OSAR 36mm Automatic36mm
Diamond Collection30mm
Power Reserve
Arctic OSAR 36mm Automatic40h
Diamond Collection40h
Water Resistance
Arctic OSAR 36mm Automatic300m
Diamond Collection50m
MSRP
Arctic OSAR 36mm Automatic$1,200
Diamond Collection$525

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
36mm
30mm
Thickness
13mm
6.3mm
Lug-to-Lug
43.5mm
36.5mm
Lug Width
18mm
5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

1 specs
Dial Color
White
Black

Movement

2 specs
Caliber
Sellita SW220-1
7N01
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$1,200
$525

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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 36mm Automatic

The Marathon Arctic OSAR 36mm Automatic is noted for its non-tritium dial option, though some owners prefer the 1-12 numeral layout found on other models. One owner found the 36mm size too small for their wrist. Overall, owners appreciate the Marathon Arctic OSAR 36mm Automatic for its non-tritium dial option.

Seiko Diamond Collection

The Seiko Diamond Collection is widely praised by owners for its stunning beauty, featuring 14 diamonds, a mother-of-pearl dial, and a two-tone color scheme. Reviewers note its dial is difficult to capture in photos and that its fit and finish suggest excellent value, especially when purchased on sale. One owner describes the gold plating on the bracelet showing some fading from desk work, and its gold tone may not suit all tastes. Overall, owners rate the Seiko Diamond Collection highly for its striking aesthetics and perceived value.

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