Side by side

Seiko Astron GPS Solar 2026 Limited EditionvsYema Wristmaster Slim Small Seconds CMM.29

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

Astron GPS Solar 2026 Limited Edition
SeikoAstron GPS Solar 2026 Limited Edition
MSRP $2,400
Wristmaster Slim Small Seconds CMM.29
YemaWristmaster Slim Small Seconds CMM.29
MSRP $2,249

At a glance

12 of 29 specs differ
Diameter
Astron GPS Solar 2026 Limited Edition41.2mm
Wristmaster Slim Small Seconds CMM.2939mm
Power Reserve
Astron GPS Solar 2026 Limited Edition40h
Wristmaster Slim Small Seconds CMM.2940h
Water Resistance
Astron GPS Solar 2026 Limited Edition100m
Wristmaster Slim Small Seconds CMM.29100m
MSRP
Astron GPS Solar 2026 Limited Edition$2,400
Wristmaster Slim Small Seconds CMM.29$2,249

Full specifications

Case

6 specs
Category
GMT
Dress
Diameter
41.2mm
39mm
Thickness
12mm
9mm
Lug-to-Lug
48.6mm
Lug Width
14mm
20mm
Material
Titanium
Stainless Steel

Crystal & Dial

2 specs
AR Coating
Super-clear coating
Inner
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
3X62
Yema CMM.29
Type
Quartz
Automatic
Jewels
10
25

Pricing

1 specs
MSRP
$2,400
$2,249

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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 2026 Limited Edition

The Seiko Astron GPS Solar 2026 Limited Edition is noted for its advanced GPS timekeeping that automatically updates time and date via satellite signals, powered by light to eliminate battery changes. Owners appreciate its design and texture, and the legible dial despite its complexity, with one owner preferring its less overloaded appearance over other Astron models. However, the GPS function requires a clear outdoor line-of-sight to the sky for reception, which can be an issue indoors or in dense urban environments, and DST is not implemented. The watch is priced over $2,000, and while it features a perpetual calendar, it only displays the date. Overall, owners and reviewers find the Seiko Astron GPS Solar 2026 Limited Edition a functional and appealing watch, particularly for its automatic timekeeping and solar power, though its GPS reception limitations and price point are noted considerations.

Yema Wristmaster Slim Small Seconds CMM.29

Owners widely praise the Yema Wristmaster Slim Small Seconds CMM.29 for its slim 9.5mm case, unique nature-inspired dial, and brushed steel finish. The micro-rotor movement is noted for its 4Hz beat rate and 42-hour power reserve, regulated to -/+ 10 seconds per day. Some owners report concerns regarding the movement and warranty process, while a reviewer questioned the value proposition at its price point and noted minor finishing inconsistencies on a prototype. On balance, the Yema Wristmaster Slim Small Seconds CMM.29 is highly regarded by owners for its distinctive design and comfortable wearability.

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