Side by side

Glycine Airman GMT Dual TimevsSeiko Astron

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 GMT Dual Time

The Glycine Airman GMT Dual Time is praised for its comfortable size, attractive aesthetics, blue AR-coated sapphire crystal, and value as a "grab 'n' go" quartz piece. Owners appreciate its classic pilot design and wearability, with some finding it fits well under a shirt cuff and looks more expensive on a mesh bracelet. However, some find the dual GMT hands redundant and less intuitive than a purist 24-hour dial, with the GMT hand's similarity to the minute hand causing frustration for some. Legibility is a concern for some owners, who note the dark Arabic numerals on the black dial can be hard to see in less than ideal light, though the luminous hands are considered amazing. On balance, owners and reviewers rate the Glycine Airman GMT Dual Time highly for its classic design and comfortable wearability, despite some legibility and GMT hand usability concerns.

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular technology, solar-powered quartz movement, and GPS time synchronization, making it a convenient grab-and-go option. The watch is frequently noted for its comfortable and lightweight titanium build, with some models featuring well-finished cases and robust ceramic bezels. Reviewers and owners alike highlight the dial's dynamic and shiny appearance, with textured hour markers and high-contrast edges. Accuracy is generally considered good, with figures ranging from +/- 15 seconds per month to within 1/2 second per day, easily corrected by GPS signal. However, some owners note that DST requires manual adjustment and that automatic time syncing depends on proximity to radio wave towers. The price point is a concern for some, who feel it competes with luxury watches without the same aesthetic appeal. One owner pointed out minimal lume and a slight misalignment of the minute hand on their model.

At a glance

18 of 29 specs differ
Diameter
Airman GMT Dual Time42mm
Astron42mm
Power Reserve
Airman GMT Dual Time
Astron
Water Resistance
Airman GMT Dual Time200m
Astron100m
MSRP
Airman GMT Dual Time$1,095
Astron$2,500

Full specifications

Case

7 specs
Thickness
13mm
12.4mm
Lug-to-Lug
49.5mm
Lug Width
22mm
14mm
Material
Stainless Steel
Titanium
Finish
Water Resistance
200m
100m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Super-clear coating
Dial Color
Blue
Indices
Lume
Luminous
LumiBrite on hands and index(es)

Movement

5 specs
Caliber
5X83
Beat Rate
0 vph
Power Reserve
0h
Jewels
5
14
Complications
GMT, Date, Dual Time
None

Pricing

1 specs
MSRP
$1,095
$2,500
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