Side by side

Bremont ionBirdvsMarathon TSAR (Tritium Search & Rescue) Diver's Quartz

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

ionBird
BremontionBird
MSRP $5,800
TSAR (Tritium Search & Rescue) Diver's Quartz
MarathonTSAR (Tritium Search & Rescue) Diver's Quartz
MSRP $1,550

At a glance

11 of 29 specs differ
Diameter
ionBird43mm
TSAR (Tritium Search & Rescue) Diver's Quartz46mm
Power Reserve
ionBird40h
TSAR (Tritium Search & Rescue) Diver's Quartz40h
Water Resistance
ionBird
TSAR (Tritium Search & Rescue) Diver's Quartz300m
MSRP
ionBird$5,800
TSAR (Tritium Search & Rescue) Diver's Quartz$1,550

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
43mm
46mm
Thickness
14mm
Lug-to-Lug
48mm
Lug Width
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
300m

Crystal & Dial

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

Movement

2 specs
Caliber
Swiss High-Torque Quartz
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$5,800
$1,550

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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 TSAR (Tritium Search & Rescue) Diver's Quartz

Owners widely praise the Marathon TSAR (Tritium Search & Rescue) Diver's Quartz for its ISO 6425 certification and practical, everyday wearability, with one owner noting the movement sets and ticks fine with expected quartz accuracy. The bezel and crystal are also described as great. One owner reports the 41mm TSAR wears small and has a field watch aesthetic, while another notes the TSAR Medium, listed at 12mm thick, visually appears thicker. Overall, owners rate the Marathon TSAR (Tritium Search & Rescue) Diver's Quartz highly for its robust build and practical design.

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