Side by side

Bremont ionBirdvsFortis Flieger F-39 Werk 7

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

ionBird
BremontionBird
MSRP $5,800
Flieger F-39 Werk 7
FortisFlieger F-39 Werk 7
MSRP $4,510

At a glance

11 of 29 specs differ
Diameter
ionBird43mm
Flieger F-39 Werk 739mm
Power Reserve
ionBird40h
Flieger F-39 Werk 738h
Water Resistance
ionBird
Flieger F-39 Werk 7200m
MSRP
ionBird$5,800
Flieger F-39 Werk 7$4,510

Full specifications

Case

6 specs
Diameter
43mm
39mm
Thickness
11.5mm
Lug-to-Lug
46mm
Lug Width
20mm
Material
Titanium
Stainless Steel
Water Resistance
200m

Crystal & Dial

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

Movement

3 specs
Caliber
Werk 7 (Manufacture)
Power Reserve
40h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$5,800
$4,510

Follow this matchup

Get a note when Bremont ionBird vs Fortis Flieger F-39 Werk 7 gets more votes, a community discussion, or a price drop. No account needed.

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.

Fortis Flieger F-39 Werk 7

The Fortis Flieger is widely praised for its superb readability, robust build quality, and phenomenal fit and finish, with reviewers noting the practical Type-A dial and utilitarian design. The F-39 models are noted to wear large due to their lug-to-lug distance, and the UW-30 movement offers a 38-hour power reserve, while other variants feature a 70-hour power reserve. On balance, reviewers highlight the Fortis Flieger's modern, stylish take on pilot's watches, balancing legibility with unique aesthetics.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.