Side by side

Marathon Arctic OSAR 41mm AutomaticvsCitizen Series 8 870

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

Arctic OSAR 41mm Automatic
MarathonArctic OSAR 41mm Automatic
MSRP $1,800
Series 8 870
CitizenSeries 8 870
MSRP $1,095

At a glance

12 of 29 specs differ
Diameter
Arctic OSAR 41mm Automatic41mm
Series 8 87039mm
Power Reserve
Arctic OSAR 41mm Automatic40h
Series 8 87042h
Water Resistance
Arctic OSAR 41mm Automatic300m
Series 8 870100m
MSRP
Arctic OSAR 41mm Automatic$1,800
Series 8 870$1,095

Full specifications

Case

7 specs
Category
Diver
Sport
Diameter
41mm
39mm
Thickness
13mm
12mm
Lug-to-Lug
43.5mm
46mm
Lug Width
18mm
11mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Underside
Dial Color
White
Green

Movement

2 specs
Caliber
Sellita SW220-1
9051
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$1,800
$1,095

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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 41mm Automatic

The Marathon Arctic OSAR 41mm Automatic is noted for its comfortable wearability on wrists under 7 inches, with one owner finding the 41mm size perfect. Accuracy observations vary, with one owner reporting a consistent +1 second per day and another noting -20 seconds per day. The watch features a Sellita automatic movement and has dimensions of 14mm thickness and a 48mm lug-to-lug. Overall, owners appreciate the Marathon Arctic OSAR 41mm Automatic for its comfortable fit and Marathon's overall appeal.

Citizen Series 8 870

The Citizen Series 8 870 is praised for its compelling value proposition and modern Japanese design with a sporty edge. Reviewers note its 40mm steel case, glossy dial with applied markers, and the in-house Calibre 0950 automatic movement offering 50 hours of power reserve and enhanced magnetic resistance. The flat sapphire crystal is noted to collect fingerprints, and the solid caseback omits a view of the movement. The limited edition variant features a 40.8mm black DLC-coated case, a carbon fiber dial, and the 0950 movement regulated to -5/+10 seconds per day. Overall, the Citizen Series 8 870 is viewed as a strong offering for its blend of design and features.

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