Side by side

Bremont ionBirdvsBoldr Odyssey Freediver

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

ionBird
BremontionBird
MSRP $5,800
Odyssey Freediver
BoldrOdyssey Freediver
MSRP $649

At a glance

12 of 29 specs differ
Diameter
ionBird43mm
Odyssey Freediver40mm
Power Reserve
ionBird40h
Odyssey Freediver40h
Water Resistance
ionBird
Odyssey Freediver300m
MSRP
ionBird$5,800
Odyssey Freediver$649

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
43mm
40mm
Thickness
14.2mm
Lug-to-Lug
48mm
Lug Width
20mm
Material
Titanium
Stainless Steel
Water Resistance
300m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Regular length (15cm - 19cm wrist size)
202
Lume
None
Super-LumiNova

Movement

1 specs
Caliber
Cal

Pricing

1 specs
MSRP
$5,800
$649

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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.

Boldr Odyssey Freediver

The Boldr Odyssey Freediver is praised for its bead-blasted steel case with polished bevels and a custom steel bracelet designed for wrist curvature. Reviewers note its strong legibility, applied details, and vintage-inspired date window on fresh dial colors. The 44mm case is surgical-grade steel with a brushed finish and angular lugs, water-resistant to 300 meters. It houses a Miyota 9075 movement with a jumping local hour function. On balance, reviewers highlight the Boldr Odyssey Freediver's thoughtful case finishing and functional movement with a local hour complication.

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