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Home/Browse/Seiko/Astron
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Seiko Astron
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Seiko · Astron

Seiko Astron

GMT

$2,500Stock unknown

4 matched eBay listings

Case

Diameter
42mm
Thickness
12.4mm
Lug-to-lug
49.5mm
Lug width
14mm
Material
Titanium
Water resistance
100m

Crystal & dial

Crystal
Sapphire
AR coating
Super-clear coating
Lume
LumiBrite on hands and index(es)

Movement

Caliber
Seiko 5X83
Type
Quartz
Jewels
14

Design language

Case shape
round
Dial style
sunburst
Sub-dials
2
Bezel
gmt
Bracelet
lug-attached
Hands
baton

AI-detected from the product image

Astron collection · 9 watches

Astron
Astron43.3mm
Astron
Astron44.1mm
Astron
Astron41.2mm
Astron
Astron42mm
Astron GPS Solar 2024 Limited Edition
Astron GPS Solar 2024 Limited Edition41.2mm
Astron GPS Solar 2025 Limited Edition
Astron GPS Solar 2025 Limited Edition43.4mm
Astron GPS Solar 2025 Limited Edition
Astron GPS Solar 2025 Limited Edition42mm
Astron GPS Solar 2026 Limited Edition
Astron GPS Solar 2026 Limited Edition41.2mm

3 colorways

Alternatives

01The market

Market prices.

Retail$2,500

The forum market

See what sellers are asking.

Active listings1Across watch forums
Closed · 90d0Asking-price history

Browse forum listings and their asking prices.

Retail stock & market context

Seiko on the secondhand market

+10.5%

2026 so far · +5.8% to +16.3% · 91 matched watches

In line with the index

GMT watches as a group: +7.6% · 103 matched watches

Year-by-year readings →

02The connection engine

More like this.

Seiko Astron GPS Solar 2025 Limited Edition

Seiko

Astron GPS Solar 2025 Limited Edition

42mm · Quartz$2,600

Citizen Promaster Skyhawk A-T

Citizen

Promaster Skyhawk A-T

42mm · Solar$1,500

Seiko Astron GPS Solar 2026 Limited Edition

Seiko

Astron GPS Solar 2026 Limited Edition

41.2mm · Quartz$2,400

Knot Watches TSC-40TI Chronograph

Knot Watches

TSC-40TI Chronograph

40mm · Solar$266

KARL-LEIMON Triple Calendar Moonphase

KARL-LEIMON

Triple Calendar Moonphase

40mm · Quartz$450

KARL-LEIMON Triple Calendar Moonphase

KARL-LEIMON

Triple Calendar Moonphase

38mm · Quartz$295

View all alternatives

03The community take

Owners talk.

“

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.

Synthesized from 7 sources
Reddit·2↗
WatchUSeek·2↗
WatchCrunch·2↗
Fratello↗
Open the discussion

On real wrists

No shots yet. Show how it wears.

04The paper trail

Ask the communityStart a discussion about the Astron: get takes from other collectors.Ask →

05The discussion

Talk about the Seiko Astron.