Side by side

Bremont ionBirdvsHamilton American Classic Spirit of Liberty Auto Chrono

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

ionBird
BremontionBird
MSRP $5,800

At a glance

10 of 29 specs differ
Diameter
ionBird43mm
American Classic Spirit of Liberty Auto Chrono42mm
Power Reserve
ionBird40h
American Classic Spirit of Liberty Auto Chrono40h
Water Resistance
ionBird
American Classic Spirit of Liberty Auto Chrono50m
MSRP
ionBird$5,800
American Classic Spirit of Liberty Auto Chrono$2,225

Full specifications

Case

7 specs
Category
Pilot
Chronograph
Diameter
43mm
42mm
Thickness
14.75mm
Lug-to-Lug
46mm
Lug Width
22mm
Material
Titanium
Stainless Steel
Water Resistance
50m

Crystal & Dial

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

Movement

1 specs
Caliber
H-21

Pricing

1 specs
MSRP
$5,800
$2,225

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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.

Hamilton American Classic Spirit of Liberty Auto Chrono

Owners widely praise the Hamilton American Classic Spirit of Liberty Auto Chrono for its impressive craftsmanship, details, and overall finish, noting sharp edges on the mixed brushed and polished lugs that give it a premium look and a refined yet bold presence. The watch offers an improved 60-hour power reserve and increased precision. However, its pushers are noted as being chunky. On balance, owners rate the Hamilton American Classic Spirit of Liberty Auto Chrono highly for its premium finishing and refined presence on the wrist.

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