Side by side

Marathon Arctic OSAR 41mm AutomaticvsZelos Hammerhead V3 300m Titanium

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
Hammerhead V3 300m Titanium
ZelosHammerhead V3 300m Titanium
MSRP $559

At a glance

8 of 29 specs differ
Diameter
Arctic OSAR 41mm Automatic41mm
Hammerhead V3 300m Titanium44mm
Power Reserve
Arctic OSAR 41mm Automatic40h
Hammerhead V3 300m Titanium40h
Water Resistance
Arctic OSAR 41mm Automatic300m
Hammerhead V3 300m Titanium300m
MSRP
Arctic OSAR 41mm Automatic$1,800
Hammerhead V3 300m Titanium$559

Full specifications

Case

4 specs
Diameter
41mm
44mm
Lug-to-Lug
43.5mm
44mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Titanium

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
White
Ti - Mosaic MOP

Movement

1 specs
Caliber
Sellita SW220-1
Seiko NH35

Pricing

1 specs
MSRP
$1,800
$559

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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.

Zelos Hammerhead V3 300m Titanium

The Zelos Hammerhead V3 300m Titanium is widely praised for its exceptional lume, unique and beautiful dial finishing that reflects light dramatically, and solid build quality that exceeds its price point. Owners also highlight its comfortable wearability, especially the lightweight titanium variant, and the convenient on-the-fly micro-adjustment on the bracelet. One owner notes the Japanese movement performs better than anticipated, and the Ti-Damascus variant features a unique, patterned dial and bezel. However, some owners find the 44mm size large, the crown "off," and the bracelet clasp could be more scratch-resistant, with resizing pins described as stubborn. Reattaching the bracelet after removal is also noted as extremely difficult. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its impressive dial aesthetics and value for money.

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