Side by side

Bremont Airco Mach 1 JetvsGrand Seiko SBGR321

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

Airco Mach 1 Jet
BremontAirco Mach 1 Jet
MSRP $4,500
SBGR321
Grand SeikoSBGR321
MSRP $5,200

At a glance

8 of 29 specs differ
Diameter
Airco Mach 1 Jet40mm
SBGR32140mm
Power Reserve
Airco Mach 1 Jet40h
SBGR32172h
Water Resistance
Airco Mach 1 Jet100m
SBGR321100m
MSRP
Airco Mach 1 Jet$4,500
SBGR321$5,200

Full specifications

Case

4 specs
Category
Pilot
Dress
Thickness
12mm
13mm
Lug-to-Lug
46.6mm
Material
Stainless Steel (DLC coated)
Stainless Steel

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

2 specs
Caliber
9S65
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$4,500
$5,200

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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.

Bremont Airco Mach 1 Jet

The Bremont Airco Mach 1 Jet is widely praised for its vintage-inspired design, 40mm size, and excellent legibility, featuring a satin-finished case with polished bevels and a matte dial with red-orange accents. Reviewers highlight its strong proportions, 100 meters of water resistance, and COSC-certified BE-92AE automatic movement. The watch is powered by the BE-92A automatic movement with a 38-hour power reserve. Overall, reviewers consider the Bremont Airco Mach 1 Jet an excellent everyday pilot's watch for its blend of vintage aesthetics and practical features.

Grand Seiko SBGR321

Grand Seiko SBGR321 owners and reviewers widely praise its attractive design, compelling dimensions, and robust movement. The watch features sharp case lines with contrasting brushing and polishing, a 40mm steel case that provides presence without bulk, and 100m water resistance. Its sunburst blue dial, inspired by the dawn sky over Mount Iwate, showcases Grand Seiko's signature finishing on applied markers and hands, with a red-tipped seconds hand. The 9S65 automatic movement is noted for its precision, running within specifications, with one source reporting a +5 to -3 seconds a day rate and a 3-day power reserve. A blue rotor with a crimson rim, also inspired by Mount Iwate, is visible through the display caseback. On balance, owners and reviewers rate the Grand Seiko SBGR321 highly for its exceptional finishing and compelling blue dial design at its price point.

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