Side by side

Marathon Arctic OSAR 46mm AutomaticvsBremont ionBird

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
ionBird
BremontionBird
MSRP $5,800

At a glance

10 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
ionBird43mm
Power Reserve
Arctic OSAR 46mm Automatic40h
ionBird40h
Water Resistance
Arctic OSAR 46mm Automatic300m
ionBird
MSRP
Arctic OSAR 46mm Automatic$2,500
ionBird$5,800

Full specifications

Case

7 specs
Category
Diver
Pilot
Diameter
46mm
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
$2,500
$5,800

Follow this matchup

Get a note when Marathon Arctic OSAR 46mm Automatic vs Bremont ionBird gets more votes, a community discussion, or a price drop. No account needed.

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.

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.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.