Side by side

Bremont ionBirdvsZelos Helica Moonphase

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

ionBird
BremontionBird
MSRP $5,800
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

10 of 29 specs differ
Diameter
ionBird43mm
Helica Moonphase39mm
Power Reserve
ionBird40h
Helica Moonphase40h
Water Resistance
ionBird
Helica Moonphase100m
MSRP
ionBird$5,800
Helica Moonphase$1,049

Full specifications

Case

7 specs
Category
Pilot
Moonphase
Diameter
43mm
39mm
Thickness
10mm
Lug-to-Lug
39mm
Lug Width
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
100m

Crystal & Dial

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

Movement

1 specs
Caliber
Sellita SW288 Moonphase

Pricing

1 specs
MSRP
$5,800
$1,049

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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 Helica Moonphase

Owners widely praise the Zelos Helica Moonphase for its gorgeous aventurine dial, unique industrial-dress aesthetic, and comfortable wearability, with one owner calling it spectacular and another their favorite Zelos. The moonphase complication is frequently highlighted as beautiful, though some find the double moon distracting or the dial cluttered. A manual-wind movement combined with a screw-down crown is noted as a drawback by some, requiring adjustment and potentially feeling fragile when fully wound, while one owner reports a 43-hour power reserve. On balance, owners rate the Zelos Helica Moonphase highly for its stunning aventurine dial and unique design at its price point.

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