Side by side

Seiko Astron GPS Solar 2025 Limited EditionvsStraton Straton Curve Chrono MKII

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

Astron GPS Solar 2025 Limited Edition
SeikoAstron GPS Solar 2025 Limited Edition
MSRP $2,600
Straton Curve Chrono MKII
StratonStraton Curve Chrono MKII
MSRP $1,099

At a glance

17 of 29 specs differ
Diameter
Astron GPS Solar 2025 Limited Edition42mm
Straton Curve Chrono MKII42mm
Power Reserve
Astron GPS Solar 2025 Limited Edition40h
Straton Curve Chrono MKII
Water Resistance
Astron GPS Solar 2025 Limited Edition100m
Straton Curve Chrono MKII100m
MSRP
Astron GPS Solar 2025 Limited Edition$2,600
Straton Curve Chrono MKII$1,099

Full specifications

Case

7 specs
Category
GMT
Chronograph
Thickness
12mm
13.9mm
Lug-to-Lug
47.9mm
47.4mm
Lug Width
14mm
22mm
Material
Titanium
316L Stainless Steel
Finish
Brushed and polished
Caseback
Solid
Stamped Design with Wheel

Crystal & Dial

5 specs
Crystal Shape
Flat
Domed
AR Coating
Super-clear coating
Yes
Dial Color
Black
Indices
Applied
Lume
LumiBrite on hands and index(es)
None

Movement

4 specs
Caliber
3X62
NE86
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
10
0

Pricing

1 specs
MSRP
$2,600
$1,099

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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 widely praised for its advanced GPS time and date adjustment capabilities, powered by light to eliminate battery changes. Owners and reviewers highlight its impressive accuracy and the convenience of automatic time zone updates, with some specifically commending the wearability of the 39mm size and its clean, simple design. However, reception of the GPS signal requires an unobstructed view of the sky, and manual time zone adjustments are necessary for Daylight Saving Time on some variants. One owner notes a slight imperfection in chapter ring alignment on the 39mm model. On balance, owners and reviewers rate the Seiko Astron GPS Solar 2025 Limited Edition highly for its satellite-powered timekeeping and improved wearability in the 39mm configuration.

Straton Curve Chrono MKII

The watch offers a retro motorsport aesthetic with a quality finish and well-chosen movements at an affordable price. Reviewers did not agree on any specific weaknesses.

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