Side by side

Bremont MBIIIvsSeiko Astron

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

Owners widely praise the Seiko Astron for its spectacular technology, solar-powered quartz movement, and GPS time synchronization, making it a convenient grab-and-go option. The watch is frequently noted for its comfortable and lightweight titanium build, with some models featuring well-finished cases and robust ceramic bezels. Reviewers and owners alike highlight the dial's dynamic and shiny appearance, with textured hour markers and high-contrast edges. Accuracy is generally considered good, with figures ranging from +/- 15 seconds per month to within 1/2 second per day, easily corrected by GPS signal. However, some owners note that DST requires manual adjustment and that automatic time syncing depends on proximity to radio wave towers. The price point is a concern for some, who feel it competes with luxury watches without the same aesthetic appeal. One owner pointed out minimal lume and a slight misalignment of the minute hand on their model.

At a glance

13 of 29 specs differ
Diameter
MBIII43mm
Astron42mm
Power Reserve
MBIII
Astron
Water Resistance
MBIII100m
Astron100m
MSRP
MBIII$5,450
Astron$2,500

Full specifications

Case

6 specs
Category
Pilot
GMT
Diameter
43mm
42mm
Thickness
14.5mm
12.4mm
Lug-to-Lug
49.5mm
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
5X83
Type
Automatic
Quartz
Jewels
0
14

Pricing

1 specs
MSRP
$5,450
$2,500
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