Side by side

Bremont ionBirdvsHamilton Jazzmaster Maestro Auto Chrono

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

ionBird
BremontionBird
MSRP $5,800
Jazzmaster Maestro Auto Chrono
HamiltonJazzmaster Maestro Auto Chrono
MSRP $2,275

At a glance

11 of 29 specs differ
Diameter
ionBird43mm
Jazzmaster Maestro Auto Chrono41mm
Power Reserve
ionBird40h
Jazzmaster Maestro Auto Chrono60h
Water Resistance
ionBird
Jazzmaster Maestro Auto Chrono100m
MSRP
ionBird$5,800
Jazzmaster Maestro Auto Chrono$2,275

Full specifications

Case

7 specs
Category
Pilot
Chronograph
Diameter
43mm
41mm
Thickness
15.1mm
Lug-to-Lug
46mm
Lug Width
22mm
Material
Titanium
Stainless Steel
Water Resistance
100m

Crystal & Dial

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

Movement

2 specs
Caliber
H-21
Power Reserve
40h
60h

Pricing

1 specs
MSRP
$5,800
$2,275

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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 Jazzmaster Maestro Auto Chrono

Owners widely praise the Hamilton Jazzmaster Maestro Auto Chrono for its dramatic quality and attention to detail, with its versatile design suitable for dressing up or down. Timekeeping is generally good, with one owner reporting gains of no more than 5 seconds per day, and another noting their 7750-based movement has kept time within 10 seconds per day even after 15 years without service. Some owners find the lack of a second hand a dealbreaker, and the 45mm size may not fit comfortably under sleeves. Concerns exist regarding potentially high maintenance costs and intervals. Overall, owners rate the Hamilton Jazzmaster Maestro Auto Chrono highly for its bulletproof build and classic, dressy appearance at an accessible price point.

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