Side by side

Seiko Astron GPS Solar 2025 Limited EditionvsTissot Supersport Chrono

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.

Seiko Astron GPS Solar 2025 Limited Edition

The Seiko Astron GPS Solar 2025 Limited Edition is lauded for its advanced satellite timekeeping and perpetual calendar functionality, offering global time and location updates via GPS signals. Owners appreciate its well-built titanium or steel case, often featuring a ceramic bezel, and the unique asymmetrical design inspired by the 1983 Seiko 7A28 6000. However, its substantial 47mm size and 16.5mm thickness are frequently noted as drawbacks, with some finding it wears large and is difficult to fit under shirt sleeves. The perpetual calendar is limited to displaying only the date, and GPS signal reception requires a clear view of the sky, posing challenges indoors. The watch is priced around $2,900 and is limited to 3,000 pieces. Overall, owners and reviewers value the Seiko Astron GPS Solar 2025 Limited Edition for its cutting-edge technology and distinctive design, despite its considerable dimensions.

Tissot Supersport Chrono

Owners widely praise the Tissot Supersport Chrono for its visually appealing dial, handset, and case shape, with many finding it a great value for its price and noting excellent lume. Some owners report subdial hand misalignment, which Tissot considers within tolerance for certain units, and one owner sold theirs due to chronograph second hand movement when stationary. The watch's 44-45.5mm size is a point of contention, with some finding it too large for smaller wrists, while others report it fits well even on smaller wrists. On balance, owners rate the Tissot Supersport Chrono highly for its aesthetic appeal and value, despite some concerns regarding its size and chronograph function.

At a glance

13 of 29 specs differ
Diameter
Astron GPS Solar 2025 Limited Edition43.4mm
Supersport Chrono45.5mm
Power Reserve
Astron GPS Solar 2025 Limited Edition
Supersport Chrono
Water Resistance
Astron GPS Solar 2025 Limited Edition100m
Supersport Chrono100m
MSRP
Astron GPS Solar 2025 Limited Edition$2,900
Supersport Chrono$575

Full specifications

Case

5 specs
Diameter
43.4mm
45.5mm
Thickness
13.4mm
11.92mm
Lug-to-Lug
49.5mm
45.5mm
Lug Width
14mm
22mm
Material
Titanium
Stainless Steel

Crystal & Dial

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

Movement

2 specs
Caliber
5X83
13.25'
Jewels
14
0

Pricing

1 specs
MSRP
$2,900
$575
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