Side by side

Bremont ionBirdvsZelos Hammerhead V3 300m Titanium

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

ionBird
BremontionBird
MSRP $5,800
Hammerhead V3 300m Titanium
ZelosHammerhead V3 300m Titanium
MSRP $559

At a glance

10 of 29 specs differ
Diameter
ionBird43mm
Hammerhead V3 300m Titanium44mm
Power Reserve
ionBird40h
Hammerhead V3 300m Titanium40h
Water Resistance
ionBird
Hammerhead V3 300m Titanium300m
MSRP
ionBird$5,800
Hammerhead V3 300m Titanium$559

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
43mm
44mm
Thickness
13mm
Lug-to-Lug
44mm
Lug Width
22mm
Water Resistance
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Regular length (15cm - 19cm wrist size)
Ti - Mosaic MOP

Movement

1 specs
Caliber
Seiko NH35

Pricing

1 specs
MSRP
$5,800
$559

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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.

Zelos Hammerhead V3 300m Titanium

The Zelos Hammerhead V3 300m Titanium is widely praised for its exceptional lume, unique and beautiful dial finishing that reflects light dramatically, and solid build quality that exceeds its price point. Owners also highlight its comfortable wearability, especially the lightweight titanium variant, and the convenient on-the-fly micro-adjustment on the bracelet. One owner notes the Japanese movement performs better than anticipated, and the Ti-Damascus variant features a unique, patterned dial and bezel. However, some owners find the 44mm size large, the crown "off," and the bracelet clasp could be more scratch-resistant, with resizing pins described as stubborn. Reattaching the bracelet after removal is also noted as extremely difficult. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its impressive dial aesthetics and value for money.

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