Side by side

Bremont ionBirdvsFormex Essence ThirtyNine

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

ionBird
BremontionBird
MSRP $5,800
Essence ThirtyNine
FormexEssence ThirtyNine
MSRP $2,390

At a glance

12 of 29 specs differ
Diameter
ionBird43mm
Essence ThirtyNine39mm
Power Reserve
ionBird40h
Essence ThirtyNine41h
Water Resistance
ionBird
Essence ThirtyNine100m
MSRP
ionBird$5,800
Essence ThirtyNine$2,390

Full specifications

Case

7 specs
Category
Pilot
Dress
Diameter
43mm
39mm
Thickness
10mm
Lug-to-Lug
45mm
Lug Width
20mm
Material
Titanium
Stainless Steel
Water Resistance
100m

Crystal & Dial

2 specs
Dial Color
Regular length (15cm - 19cm wrist size)
Space Ghost
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Sellita SW200-1
Power Reserve
40h
41h

Pricing

1 specs
MSRP
$5,800
$2,390

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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.

Formex Essence ThirtyNine

The Formex Essence ThirtyNine is praised for its impressive build quality and value, featuring a patented case suspension system for comfort and protection. It houses a COSC-certified Sellita SW200-1 movement with a 38-hour power reserve and a tool-free strap quick-release system. A minor inconvenience noted is the specific closing order of the clasp. On balance, reviewers rate the Formex Essence ThirtyNine highly for its comfortable wearability and excellent value at its price point.

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