Side by side

Bremont ionBirdvsCitizen Promaster Air GMT

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

ionBird
BremontionBird
MSRP $5,800
Promaster Air GMT
CitizenPromaster Air GMT
MSRP $1,195

At a glance

11 of 29 specs differ
Diameter
ionBird43mm
Promaster Air GMT44.5mm
Power Reserve
ionBird40h
Promaster Air GMT50h
Water Resistance
ionBird
Promaster Air GMT200m
MSRP
ionBird$5,800
Promaster Air GMT$1,195

Full specifications

Case

6 specs
Diameter
43mm
44.5mm
Thickness
12mm
Lug-to-Lug
46mm
Lug Width
22mm
Material
Titanium
Stainless Steel
Water Resistance
200m

Crystal & Dial

2 specs
AR Coating
Inner
Underside
Dial Color
Regular length (15cm - 19cm wrist size)
Navy

Movement

2 specs
Caliber
9054
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$5,800
$1,195

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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.

Citizen Promaster Air GMT

The Citizen Promaster Air GMT is widely praised for its impressive in-house Cal. 9054 automatic GMT movement, excellent case fit and finish, and a high-quality bracelet for its price point. Reviewers highlight its striking anti-reflective domed sapphire crystal, legible dial with large numerals, and long-lasting lume. However, its 44.5mm dimensions are considered unfashionably large, and the case design is described as uninspired. The independent hour jumping is noted as mushy and unable to be set backward, while the unframed 3 o'clock date window and minute track on the rehaut being obscured by case shadows are also flagged as drawbacks. The watch is priced at $1,125 USD and features 200m water resistance and a 50-hour power reserve. On balance, reviewers commend the Citizen Promaster Air GMT for its strong movement and legibility at an affordable price, despite reservations about its case size and some functional aspects of the GMT hand.

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