Side by side

Bremont ionBirdvsLongines LONGINES SPIRIT FLYBACK

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

ionBird
BremontionBird
MSRP $5,800
LONGINES SPIRIT FLYBACK
LonginesLONGINES SPIRIT FLYBACK
MSRP $5,000

At a glance

10 of 29 specs differ
Diameter
ionBird43mm
LONGINES SPIRIT FLYBACK42mm
Power Reserve
ionBird40h
LONGINES SPIRIT FLYBACK40h
Water Resistance
ionBird
LONGINES SPIRIT FLYBACK100m
MSRP
ionBird$5,800
LONGINES SPIRIT FLYBACK$5,000

Full specifications

Case

7 specs
Category
Pilot
Chronograph
Diameter
43mm
42mm
Thickness
17mm
Lug-to-Lug
49.5mm
Lug Width
22mm
Material
Titanium
Stainless Steel
Water Resistance
100m

Crystal & Dial

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

Movement

1 specs
Caliber
L791.4

Pricing

1 specs
MSRP
$5,800
$5,000

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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.

LONGINES SPIRIT FLYBACK

Owners widely praise the Longines Spirit Flyback for its attractive design, well-finished titanium case, and value as a chronometer-certified flyback chronograph. Specific positive notes include its fun and useful flyback function for cooking, and the perceived adventure-ready, indestructible feel of the titanium model. However, reviewers and owners consistently flag its 17mm thickness as a significant detractor from wearability, with some finding it too chunky for daily wear. There is also a split opinion on the dial design, with some preferring the older five-star motif and gold hands/markers, while others appreciate the cleaner, simplified dial and cutoff numerals. The Longines Spirit Flyback is priced around $5,350-$6,500 USD. Overall, owners and reviewers rate the Longines Spirit Flyback highly for its flyback chronograph complication and attractive design, despite widespread concerns about its thickness.

From video reviewers

The Spirit Flyback's heritage-inspired design is a notable strength, with a distinctive look reminiscent of the original Flyback Chronograph. The watch's price point is somewhat high compared to its competitors, which might be a drawback for some buyers. Reviewers disagree on the watch's design, with one reviewer feeling it needed more of an edge to stand out in the Spirit collection, while another praises its heritage-inspired style.

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