Side by side

Bremont ionBirdvsPhoibos Leviathan

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

ionBird
BremontionBird
MSRP $5,800
Leviathan
PhoibosLeviathan
MSRP $399

At a glance

12 of 29 specs differ
Diameter
ionBird43mm
Leviathan40mm
Power Reserve
ionBird40h
Leviathan40h
Water Resistance
ionBird
Leviathan200m
MSRP
ionBird$5,800
Leviathan$399

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
43mm
40mm
Thickness
13mm
Lug-to-Lug
48mm
Lug Width
20mm
Material
Titanium
Stainless Steel
Water Resistance
200m

Crystal & Dial

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

Movement

1 specs
Caliber
SII NH35

Pricing

1 specs
MSRP
$5,800
$399

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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.

Phoibos Leviathan

Owners widely praise the Phoibos Leviathan for its excellent value, superb case finishing, and generous lume. The watch is described as visually striking, legible, and well-made, with a unique case design, sapphire crystal, and a comfortable FKM strap or excellent bracelet with a milled clasp and quick adjustments. Some owners note the bezel's staggered jimping can cause fingers to slip, and the beveled crystal can distort the view of indices. Accuracy varies, with one owner reporting losing 5-10 seconds per day without a winder, while others state it keeps accurate time out of the box. The watch is frequently described as heavy and thick, with some owners finding it too large for wrists smaller than 7.5 inches, although newer models feature an improved clasp for better comfort and functionality. Overall, owners rate the Phoibos Leviathan highly for its striking design and impressive finishing at an accessible price point.

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