Side by side

Glycine Airpilot ChronovsSeiko 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 Airpilot Chrono

Owners widely praise the Glycine Airpilot Chrono for its exceptional value, with many stating it is worth twice its price and offers finishing comparable to higher-end brands. Specific highlights include the dial's depth and versatility, the symmetrical design with the date at 6 o'clock, the well-integrated 24-hour complication, and the applied indices. The screw-down crown, sapphire crystal, and 100m water resistance are also frequently cited as strong points, as is the good lume. Some owners find the red chapter ring numerals too small, and the standard Sellita SW200 movement and average clasp are noted as drawbacks. The 41mm case with a 52mm lug-to-lug distance is considered by some to wear large on smaller wrists, though curved lugs help with wearability. Overall, owners rate the Glycine Airpilot Chrono highly for its stunning design and exceptional value at its price point.

Seiko Astron

The Seiko Astron is widely praised for its advanced timekeeping technology, including GPS and radio wave synchronization, offering grab-and-go convenience and exceptional accuracy, with some users reporting +/- 15 seconds per month or even 1/2 second per day for its autonomous quartz movement. Owners appreciate its well-finished titanium cases and bracelets, detailed dials with high-contrast markers, and lightweight, comfortable wearability. However, some find the price point of around $2,000 to $2,400 expensive, noting that GPS sync works best outdoors and that certain models lack screw-down casebacks, impacting water resistance. The lume is described as sparse on some models, and recessed buttons require tools to operate. Overall, owners and reviewers rate the Seiko Astron highly for its cutting-edge technology and comfortable, well-finished design, with the value proposition becoming more compelling when models are found at a discount.

From video reviewers

The watch's automatic time zone adjustment via GPS is a notable feature. The watch's solar-powered charging system can take up to 6 months to fully charge, which may not be ideal for users who need a quick power boost.

At a glance

18 of 29 specs differ
Diameter
Airpilot Chrono44mm
Astron43.3mm
Power Reserve
Airpilot Chrono
Astron
Water Resistance
Airpilot Chrono100m
Astron100m
MSRP
Airpilot Chrono$1,895
Astron$2,700

Full specifications

Case

7 specs
Diameter
44mm
43.3mm
Thickness
12mm
13.4mm
Lug-to-Lug
49.5mm
Lug Width
22mm
14mm
Material
Stainless Steel
Titanium
Finish
Caseback

Crystal & Dial

5 specs
Crystal Shape
Curved
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
4
14
Complications
Date
None

Pricing

1 specs
MSRP
$1,895
$2,700
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