Side by side

Seiko Astron GPS Solar 2026 Limited EditionvsYema Flygraf Bi-Compax French Air Force

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
Flygraf Bi-Compax French Air Force
YemaFlygraf Bi-Compax French Air Force
MSRP $490

At a glance

11 of 29 specs differ
Diameter
Astron GPS Solar 2026 Limited Edition41.2mm
Flygraf Bi-Compax French Air Force40mm
Power Reserve
Astron GPS Solar 2026 Limited Edition40h
Flygraf Bi-Compax French Air Force40h
Water Resistance
Astron GPS Solar 2026 Limited Edition100m
Flygraf Bi-Compax French Air Force100m
MSRP
Astron GPS Solar 2026 Limited Edition$2,400
Flygraf Bi-Compax French Air Force$490

Full specifications

Case

6 specs
Category
GMT
Chronograph
Diameter
41.2mm
40mm
Thickness
12mm
9.5mm
Lug-to-Lug
48.6mm
Lug Width
14mm
20mm
Material
Titanium
316L Stainless Steel

Crystal & Dial

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

Movement

2 specs
Caliber
3X62
Jewels
10
25

Pricing

1 specs
MSRP
$2,400
$490

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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 Flygraf Bi-Compax French Air Force

Owners widely praise the Yema Flygraf Bi-Compax French Air Force for its attractive, toolish aesthetic and excellent quality for the price, noting the legible Type A dial and 40mm titanium case. However, the acrylic crystal scratches easily, and the titanium case is prone to marking. The mecha-quartz movement's chrono timer sweeps rather than ticks, and one owner questions the purpose of the oversized crown. The in-house Yema 2000 movement is accurate at +/- 10 seconds per day but has a 42-hour power reserve, and some owners express concerns regarding Yema's past quality control and customer service. On balance, owners rate the Yema Flygraf Bi-Compax French Air Force highly for its attractive design and value, despite concerns about material durability and brand service history.

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