Side by side

Bremont MBIIIvsSeiko Astron GPS Solar 2026 Limited Edition

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.

Bremont MBIII

The Bremont MBIII is praised for its versatile pilot's watch design, excellent dial visibility, and shock-resistant chronometer movement housed in a 43mm Trip-Tick case with a Faraday cage. Owners appreciate its unique origin story tied to Martin-Baker ejection seats and the brand's distinctive design language, with some noting the orange barrel accent. The watch features a 24-hour scale, 100m water resistance, and an improved Roto Click bezel. However, the "DANGER EJECTION SEAT" dial text is considered divisive, and its ETA 2892 GMT movement is not a "true" GMT as only the 24-hour hand is independently adjustable. On balance, owners and reviewers value the Bremont MBIII for its robust build and unique aviation-inspired narrative.

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.

At a glance

13 of 29 specs differ
Diameter
MBIII43mm
Astron GPS Solar 2026 Limited Edition41.2mm
Power Reserve
MBIII
Astron GPS Solar 2026 Limited Edition
Water Resistance
MBIII100m
Astron GPS Solar 2026 Limited Edition100m
MSRP
MBIII$5,450
Astron GPS Solar 2026 Limited Edition$2,400

Full specifications

Case

6 specs
Category
Pilot
GMT
Diameter
43mm
41.2mm
Thickness
14.5mm
12mm
Lug-to-Lug
48.6mm
Lug Width
14.5mm
14mm
Material
Stainless Steel
Titanium

Crystal & Dial

3 specs
AR Coating
Super-clear coating
Dial Color
Armoured II
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
BE-36AE
3X62
Type
Automatic
Quartz
Jewels
0
10

Pricing

1 specs
MSRP
$5,450
$2,400
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