Breitling Top Time B01vsOmega Speedmaster Moonwatch Professional Co Axial Master Chronometer Chronograph 42mm


Ref. 310.63.42.50.01.001·MSRP $36,100
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Top Time B01

Speedmaster Moonwatch Professional Co Axial Master Chronometer Chronograph 42mm
Diameter
41mm
42mm
Lug-to-Lug
n/a
47.5mm
Thickness
13.3mm
13.2mm
lowest
Water Resistance
100m
highest
50m
Power Reserve
70h
highest
50h
MSRP
$23,900
lowest
$36,100
Movement
Breitling B01
Omega 3861
Case
7 specsCrystal & Dial
2 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Breitling Top Time B01 is widely praised for its handsome, sharply finished chronograph design and the in-house B01 movement, with owners calling it beautiful and a favorite design. Reviewers highlight its compelling design, polished bezel, and domed sapphire crystal for a '60s-sporty feel, complemented by brushed case sides for ruggedness. Owners appreciate the B01 movement's COSC certification, 70-hour power reserve, and the dial's unique features, such as automotive-grade paint chips on the Mustang model or blue dials that change with light. The 41mm case is noted to wear slightly smaller, and the watch offers 100m water resistance. Some owners find the B01 movement justifies the price over older ETA movements, citing better accuracy retention between services and a useful weekend power reserve, though servicing costs are higher. However, one owner expressed concern about a Breitling B01 movement seizing and needing replacement.
Owners widely praise the Omega Speedmaster Moonwatch Professional Co Axial Master Chronometer Chronograph 42mm for its historical significance, iconic design, and wearability, with some finding it provides more personal satisfaction than more expensive watches. Reviewers note the updated 3861 movement offers improved accuracy and magnetic resistance, and the bracelet is a significant enhancement. The redesigned case and dial details are seen as aesthetic advances, and the Hesalite crystal, while scratch-prone, is polishable. Some owners find the current prices too high, suggesting it is overrated and overpriced at $7,000, citing a lack of applied markers and mediocre lume, while others disagree, highlighting its value at lower price points and its status as the best movement in the line.
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