Side by side

Bremont ionBirdvsSeiko Astron GPS Solar 2024 Limited Edition

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

ionBird
BremontionBird
MSRP $5,800
Astron GPS Solar 2024 Limited Edition
SeikoAstron GPS Solar 2024 Limited Edition
MSRP $2,300

At a glance

13 of 29 specs differ
Diameter
ionBird43mm
Astron GPS Solar 2024 Limited Edition41.2mm
Power Reserve
ionBird40h
Astron GPS Solar 2024 Limited Edition40h
Water Resistance
ionBird
Astron GPS Solar 2024 Limited Edition100m
MSRP
ionBird$5,800
Astron GPS Solar 2024 Limited Edition$2,300

Full specifications

Case

6 specs
Category
Pilot
GMT
Diameter
43mm
41.2mm
Thickness
12mm
Lug-to-Lug
48.5mm
Lug Width
14mm
Water Resistance
100m

Crystal & Dial

3 specs
AR Coating
Inner
Super-clear coating
Dial Color
Regular length (15cm - 19cm wrist size)
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
3X62
Type
Automatic
Quartz
Jewels
25
10

Pricing

1 specs
MSRP
$5,800
$2,300

Follow this matchup

Get a note when Bremont ionBird vs Seiko Astron GPS Solar 2024 Limited Edition 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.

Seiko Astron GPS Solar 2024 Limited Edition

The Seiko Astron GPS Solar 2024 Limited Edition is widely praised for its light and thin wearability, with owners highlighting its comfortable 39mm size and titanium construction. Reviewers and owners alike commend its excellent lume application, clear and legible dial, and subtle gold accents. The watch offers automatic GPS time adjustment for global time and location updates, a perpetual calendar, and a six-month power reserve, eliminating battery changes. Some owners, however, find its dial too shiny for maximum versatility and note that its size wears larger than its dimensions suggest, making it less of a daily driver for some. A minor point of contention for some is the chapter ring alignment, which was noted as slightly imperfect. Overall, owners and reviewers rate the Seiko Astron GPS Solar 2024 Limited Edition highly for its blend of high-tech functionality, comfortable wearability, and attractive design.

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.