Side by side

Bremont ionBirdvsGlycine Airman No. 1 GMT

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

ionBird
BremontionBird
MSRP $5,800
Airman No. 1 GMT
GlycineAirman No. 1 GMT
MSRP $2,800

At a glance

17 of 29 specs differ
Diameter
ionBird43mm
Airman No. 1 GMT36mm
Power Reserve
ionBird40h
Airman No. 1 GMT48h
Water Resistance
ionBird
Airman No. 1 GMT30m
MSRP
ionBird$5,800
Airman No. 1 GMT$2,800

Full specifications

Case

8 specs
Category
Pilot
GMT
Diameter
43mm
36mm
Thickness
11.6mm
Lug Width
20mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Water Resistance
30m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Regular length (15cm - 19cm wrist size)
Silver
Indices
Applied
Lume
None
Luminous

Movement

3 specs
Caliber
SW330-2
Power Reserve
40h
48h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$5,800
$2,800

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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.

Glycine Airman No. 1 GMT

Owners widely praise the Glycine Airman No. 1 GMT for its historical significance and attractive dial. However, some find the 36mm case size to be a bit small, and the GMT hand can be difficult to distinguish from the minute hand. The watch has a very limited 3ATM water resistance. Later versions feature sapphire crystals, differing from earlier plexi models. Overall, owners value the Glycine Airman No. 1 GMT for its historical appeal and dial design, despite minor legibility and sizing concerns.

From video reviewers

The case finishing and dial colors are praised. The value proposition is tied to a sale price, with questions about long-term competitiveness.

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