Side by side

Marathon Arctic OSAR 41mm AutomaticvsBremont ionBird

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
ionBird
BremontionBird
MSRP $5,800

At a glance

10 of 29 specs differ
Diameter
Arctic OSAR 41mm Automatic41mm
ionBird43mm
Power Reserve
Arctic OSAR 41mm Automatic40h
ionBird40h
Water Resistance
Arctic OSAR 41mm Automatic300m
ionBird
MSRP
Arctic OSAR 41mm Automatic$1,800
ionBird$5,800

Full specifications

Case

7 specs
Category
Diver
Pilot
Diameter
41mm
43mm
Thickness
13mm
Lug-to-Lug
43.5mm
Lug Width
18mm
Material
316L Stainless Steel
Titanium
Water Resistance
300m

Crystal & Dial

1 specs
Dial Color
White
Regular length (15cm - 19cm wrist size)

Movement

1 specs
Caliber
Sellita SW220-1

Pricing

1 specs
MSRP
$1,800
$5,800

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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.

Bremont ionBird

Owners report the Bremont ionBird is overpriced and features a printed dial with a poorly placed date window at 4:30, which some find visually disruptive. However, some owners suggest its case finishing is superior to competitors. The 43mm titanium Bremont ionBird GMT is powered by a COSC-certified BE-93-2AV automatic movement and retails for $5,795. On balance, owners and reviewers find the Bremont ionBird's date window placement and price point to be significant drawbacks.

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