Side by side

Bremont ionBirdvsZelos Comet 39

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

ionBird
BremontionBird
MSRP $5,800
Comet 39
ZelosComet 39
MSRP $2,499

At a glance

12 of 29 specs differ
Diameter
ionBird43mm
Comet 3939mm
Power Reserve
ionBird40h
Comet 3940h
Water Resistance
ionBird
Comet 3950m
MSRP
ionBird$5,800
Comet 39$2,499

Full specifications

Case

7 specs
Category
Pilot
Dress
Diameter
43mm
39mm
Thickness
7.6mm
Lug-to-Lug
39mm
Lug Width
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
50m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Regular length (15cm - 19cm wrist size)
Tantalum LE

Movement

2 specs
Caliber
ETA/Peseux 7001
Type
Automatic
Manual

Pricing

1 specs
MSRP
$5,800
$2,499

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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 Comet 39

Owners widely praise the Zelos Comet 39 for its wearable 39mm size, thin profile under 10mm thanks to its manual-wind Sellita SW215 movement, and its captivating dial with a deep starburst effect. The winding action is described as a joy, and the watch is considered a stunner for its price, blending modern and vintage aesthetics. Some owners note frustration with Zelos's limited production runs leading to quick sell-outs. One owner found the logo childlike, while another experienced strap-rubbing issues with the short lugs, which were resolved with a Milanese bracelet. Overall, owners and reviewers rate the Zelos Comet 39 highly for its excellent value and striking dial design.

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