Side by side

Bremont ionBirdvsHamilton Khaki Field Auto Chrono

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

ionBird
BremontionBird
MSRP $5,800
Khaki Field Auto Chrono
HamiltonKhaki Field Auto Chrono
MSRP $2,175

At a glance

11 of 29 specs differ
Diameter
ionBird43mm
Khaki Field Auto Chrono42mm
Power Reserve
ionBird40h
Khaki Field Auto Chrono60h
Water Resistance
ionBird
Khaki Field Auto Chrono100m
MSRP
ionBird$5,800
Khaki Field Auto Chrono$2,175

Full specifications

Case

7 specs
Category
Pilot
Chronograph
Diameter
43mm
42mm
Thickness
14.5mm
Lug-to-Lug
46mm
Lug Width
20mm
Material
Titanium
Stainless Steel
Water Resistance
100m

Crystal & Dial

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

Movement

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

Pricing

1 specs
MSRP
$5,800
$2,175

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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 Khaki Field Auto Chrono

The Hamilton Khaki Field Auto Chrono is widely praised for its retro military design, value proposition, and reliable ETA movement. Reviewers highlight its 42mm steel case, 100m water resistance, and the H-21 automatic movement offering a 60-hour power reserve. One editorial review notes the unusual dial layout omits a running seconds indicator for symmetry, featuring day and date windows instead. The case is described as black PVD-treated stainless steel with a brushed finish and polished bezel, complemented by a black-on-black dial with dark grey Super-LumiNova and polished Arabic numerals. Overall, owners and reviewers consider the Hamilton Khaki Field Auto Chrono a well-designed tactical sports watch offering a strong combination of style and value.

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