Side by side

Breitling Aerospace B70 OrbitervsSeiko Prospex SPEEDTIMER

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

Aerospace B70 Orbiter
BreitlingAerospace B70 Orbiter
MSRP $5,300
Prospex SPEEDTIMER
SeikoProspex SPEEDTIMER
MSRP $2,200
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Breitling Aerospace B70 Orbiter

The Breitling Aerospace B70 Orbiter is praised for its lightness, durability, and unique appearance, with enthusiasts highlighting its bi-directional bezel, 99-hour stopwatch, flyback function, and highly accurate quartz movement. Reviewers and owners note the smoky orange dial is more appealing in person than in photos, and the updated three-pusher system is considered faster and more intuitive than older crown designs. However, some find the orange dial and logo unappealing, and a slight play in the minute hand is noted as common. One owner reports the audible alarm and countdown timer are too quiet, and another experienced issues with the analog time losing sync with the digital display. On balance, owners and reviewers rate the Breitling Aerospace B70 Orbiter highly for its robust tool watch functionality and unique design elements.

Seiko Prospex SPEEDTIMER

Owners widely praise the Seiko Prospex SPEEDTIMER for its unique dial colors and vintage-inspired design, with many appreciating its compact 39mm case size and 100m or 200m water resistance. Reviewers and owners note the V192 solar movement’s power reserve indicator and its reliability, though some owners express a preference for automatic movements. One owner finds the $700 price for a solar quartz model expensive, while another criticizes the €860 price point and desires a thinner case and a bracelet with quick-release or micro-adjustment. On balance, owners and reviewers appreciate the Seiko Prospex SPEEDTIMER for its distinctive aesthetic and versatile wearability, despite some reservations about its price and case thickness.

At a glance

17 of 29 specs differ
Diameter
Aerospace B70 Orbiter43mm
Prospex SPEEDTIMER42mm
Power Reserve
Aerospace B70 Orbiter
Prospex SPEEDTIMER40h
Water Resistance
Aerospace B70 Orbiter100m
Prospex SPEEDTIMER100m
MSRP
Aerospace B70 Orbiter$5,300
Prospex SPEEDTIMER$2,200

Full specifications

Case

7 specs
Category
Mechanical
Chronograph
Diameter
43mm
42mm
Thickness
12.95mm
12.9mm
Lug-to-Lug
49.6mm
Material
Titanium
Stainless Steel
Finish
Titanium
Brushed and polished
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Curved
AR Coating
Super-clear coating
Dial Color
Black
Indices
Applied
Lume
None
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Breitling B70 (Manufacture MMT)
5X83
Beat Rate
0 vph
28,800 vph
Power Reserve
0h
40h
Jewels
0
14

Pricing

1 specs
MSRP
$5,300
$2,200
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