Side by side

Seiko AstronvsTissot Seastar 1000 GMT

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

Astron
SeikoAstron
MSRP $2,200
Seastar 1000 GMT
TissotSeastar 1000 GMT
MSRP $575
What people say

Owners + reviewers, side by side

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

Seiko Astron

Owners widely praise the Seiko Astron for its spectacular time-telling technology, GPS time sync, and grab-and-go convenience, with many calling it the best watch they have ever owned. Reviewers and owners highlight the well-managed dial detail, textured hour markers, and high-contrast edges, as well as the well-finished case and bracelet. Some find the lightweight titanium build and quick bracelet adjustment contribute to comfortable wearability. Accuracy is noted as +/- 15 seconds per month without GPS, though the autonomous quartz movement can be easily reset by looking at the sky. Criticisms include DST not being automatically implemented, recessed buttons requiring a sharp object for adjustment, and sparse lume with no 12 o'clock marker. Some owners feel the price point is too expensive for its aesthetic appeal. Overall, owners rate the Seiko Astron highly for its advanced time-telling technology and convenient features.

Tissot Seastar 1000 GMT

Owners widely praise the Tissot Seastar 1000 GMT for its sapphire crystal, 300m water resistance, and GMT complication, with one owner expressing deep satisfaction. A point of contention for some is that Swiss quartz movements may exhibit second-hand misalignment with markers, unlike certain Japanese quartz movements. On balance, owners rate the Tissot Seastar 1000 GMT highly for its robust features and value.

At a glance

13 of 29 specs differ
Diameter
Astron41.2mm
Seastar 1000 GMT40mm
Power Reserve
Astron40h
Seastar 1000 GMT40h
Water Resistance
Astron100m
Seastar 1000 GMT300m
MSRP
Astron$2,200
Seastar 1000 GMT$575

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
41.2mm
40mm
Thickness
12mm
11.77mm
Lug-to-Lug
48.5mm
40mm
Lug Width
14mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

3 specs
AR Coating
Super-clear coating
Inner
Indices
Applied
Indexes
Lume
LumiBrite on hands and index(es)
Super-LumiNova ®

Movement

2 specs
Caliber
3X62
11 1/2'''
Jewels
10
25

Pricing

1 specs
MSRP
$2,200
$575
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