Side by side

Glycine Airman GMTvsSpinnaker Dumas GMT

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

Airman GMT
GlycineAirman GMT
MSRP $2,700
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

17 of 29 specs differ
Diameter
Airman GMT42mm
Dumas GMT44mm
Power Reserve
Airman GMT48h
Dumas GMT40h
Water Resistance
Airman GMT100m
Dumas GMT300m
MSRP
Airman GMT$2,700
Dumas GMT$399

Full specifications

Case

7 specs
Diameter
42mm
44mm
Thickness
12mm
15mm
Lug-to-Lug
48mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
100m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Blue
Indices
Applied
Lume
Luminous
None

Movement

4 specs
Caliber
SW330-2
Seiko NH34A
Power Reserve
48h
40h
Jewels
21
25
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$2,700
$399

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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.

Glycine Airman GMT

Owners widely appreciate the Glycine Airman GMT's classic pilot design and consider it a well-built watch, with some noting the 39mm models offer perfect sizing and 200m water resistance. Reviewers praise the plexiglass crystal and matte dial, while some owners find the GMT hand visually similar to the minute hand, making it difficult to read. Accuracy from the Sellita-based movement is described as acceptable, though dial lume pips are noted as weaker than the hands. On balance, owners and reviewers value the Glycine Airman GMT for its faithful reproduction of a classic pilot watch design, despite some legibility concerns with the GMT hand.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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