Side by side

Glycine Airman No. 1 GMTvsHamilton Khaki Aviation Pilot Auto

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

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

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.

Hamilton Khaki Aviation Pilot Auto

The Hamilton Khaki Aviation Pilot Auto is widely praised for its legibility and value, with reviewers and owners highlighting its clear dial design, bold numerals, and effective Super-LumiNova. The 80-hour power reserve from the H-10 caliber is a consistent positive point. Owners and reviewers find the 36mm and 39mm sizes to be comfortable and versatile for everyday wear, though some find the hands on the 36mm model disproportionate or requiring adjustment. The watch offers 100m water resistance. On balance, the Hamilton Khaki Aviation Pilot Auto is highly regarded for its legibility, substantial power reserve, and everyday wearability at its price point.

From video reviewers

The 36mm case size makes the pilot's watch aesthetic more accessible. The watch offers 100 meters of water resistance. Reviewers expressed hesitation about long-term appeal or missing features.

At a glance

18 of 29 specs differ
Diameter
Airman No. 1 GMT36mm
Khaki Aviation Pilot Auto36mm
Power Reserve
Airman No. 1 GMT48h
Khaki Aviation Pilot Auto80h
Water Resistance
Airman No. 1 GMT30m
Khaki Aviation Pilot Auto100m
MSRP
Airman No. 1 GMT$2,800
Khaki Aviation Pilot Auto$1,125

Full specifications

Case

7 specs
Category
GMT
Pilot
Thickness
11.6mm
11.15mm
Lug-to-Lug
0mm
Lug Width
20mm
18mm
Finish
Water Resistance
30m
100m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Dial Color
Silver
Black
Indices
Lume
Luminous
None

Movement

5 specs
Caliber
Sellita SW330-2
H-10
Beat Rate
28,800 vph
0 vph
Power Reserve
48h
80h
Jewels
25
0
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$2,800
$1,125
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