Side by side

Bremont ionBirdvsMarathon MSAR (Medium Search & Rescue) Diver's Automatic

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

ionBird
BremontionBird
MSRP $5,800
MSAR (Medium Search & Rescue) Diver's Automatic
MarathonMSAR (Medium Search & Rescue) Diver's Automatic
MSRP $1,800

At a glance

9 of 29 specs differ
Diameter
ionBird43mm
MSAR (Medium Search & Rescue) Diver's Automatic36mm
Power Reserve
ionBird40h
MSAR (Medium Search & Rescue) Diver's Automatic40h
Water Resistance
ionBird
MSAR (Medium Search & Rescue) Diver's Automatic300m
MSRP
ionBird$5,800
MSAR (Medium Search & Rescue) Diver's Automatic$1,800

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
43mm
36mm
Thickness
18mm
Lug Width
18mm
Material
Titanium
316L Stainless Steel
Water Resistance
300m

Crystal & Dial

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

Movement

1 specs
Caliber
Sellita SW200-1

Pricing

1 specs
MSRP
$5,800
$1,800

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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.

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.

Marathon MSAR (Medium Search & Rescue) Diver's Automatic

The Marathon MSAR (Medium Search & Rescue) Diver's Automatic is lauded for its utilitarian, no-nonsense design, exceptional tritium lume for visibility, and comfortable 41mm wearability. Reviewers highlight its robust build, meeting ISO 6425 dive watch standards and approved for military use, demonstrating durability during demanding activities. One reviewer notes the stock rubber strap requires modification for a proper fit. Overall, reviewers rate the Marathon MSAR (Medium Search & Rescue) Diver's Automatic highly for its focus on utility and ruggedness at its price point.

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