Side by side

Bremont Airco Mach 1 JetvsSeiko Prospex Sea

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
Prospex Sea
SeikoProspex Sea
MSRP $795

At a glance

12 of 29 specs differ
Diameter
Airco Mach 1 Jet40mm
Prospex Sea34mm
Power Reserve
Airco Mach 1 Jet40h
Prospex Sea40h
Water Resistance
Airco Mach 1 Jet100m
Prospex Sea200m
MSRP
Airco Mach 1 Jet$4,500
Prospex Sea$795

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
40mm
34mm
Thickness
12mm
8.7mm
Lug-to-Lug
40.8mm
Lug Width
20mm
16mm
Material
Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
6N01
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$4,500
$795

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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.

Seiko Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many appreciating its comfortable wearability due to its case shape and lug-to-lug distance. Reviewers consistently highlight its impressive finishing and classic dive watch design, often noting the bright LumiBrite lume. Some owners find the watch to be large, thick, and heavy, while others consider it the perfect size, indicating a split opinion on wearability for smaller wrists. The power reserve from some movements is noted as less than newer variants, and the clasp quality receives mixed feedback. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional finishing and value proposition in the dive watch market.

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