Beaufort BicompaxvsBreitling Top Time B01

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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.

Beaufort Bicompax at true scale

Bicompax

Breitling Top Time B01 at true scale

Top Time B01

Diameter

40.5mm

41mm

Lug-to-Lug

47mm

n/a

Thickness

13.8mm

13.3mm

lowest

Water Resistance

50m

100m

highest

Power Reserve

63h

70h

highest

MSRP

$810

lowest

$7,650

Movement

Sellita SW510

Breitling B01

Case

6 specs
Diameter
40.5mm
41mm
Thickness
13.8mm
13.3mm
Lug-to-Lug
47mm
n/a
Lug Width
20mm
n/a
Finish
n/a
18k red gold
Water Resistance
50m
100m

Crystal & Dial

2 specs
Dial Color
Salmon
n/a
Lume
Super-LumiNova applied to the index and hands for low-light readability.
None

Movement

5 specs
Caliber
Sellita SW510
Breitling B01
Type
Manual
Automatic
Power Reserve
63h
70h
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$810
$7,650
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Reviews

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

Beaufort Bicompax

Owners widely praise the Beaufort Bicompax for its attractive bicompax chronograph design, clean aesthetic, and excellent legibility with effective lume. The Sellita SW510 BH b movement is noted for performing well, with winding and setting actions comparable to ETA movements and accuracy within COSC parameters at +5 seconds/day. Fit and finish are considered spot on, with a well-executed gradient dial and subdials, and the h-link bracelet is described as comfortable and easy to size. Some owners find the price a bit high for the specifications on paper, and one commenter felt the blue dial could have more depth. On balance, owners and reviewers rate the Beaufort Bicompax highly for its vintage aesthetic and reliable manual-wind chronograph movement at 40.5mm.

Breitling Top Time B01

Owners widely praise the Breitling Top Time B01 for its handsome design and sharp finishing, with some calling it one of their favorite watches and sexier than alternatives. Reviewers note the in-house B01 movement, 41mm case that wears smaller than dimensions suggest, and 100m water resistance. Owners appreciate the blue dial that changes with light and unique details like a lightning bolt seconds hand or dials made from automotive paint chips. One owner notes the lug-to-lug length can be a concern for smaller wrists, suggesting an in-person try-on. Accuracy figures vary, with one owner seeing +1/+2 seconds per day and another about -6 seconds per day. The Breitling Top Time B01 offers a 70-hour power reserve and a 5-year warranty. On balance, owners and reviewers rate the Breitling Top Time B01 highly for its attractive design and the value of its in-house B01 movement.

From video reviewers

The in-house B01 chronograph movement with its 70-hour power reserve stands out as the defining strength, delivering substantial functionality and reliability across multiple variants. The compact proportions—ranging from 38mm to 41mm cases with lug-to-lug measurements between 44mm and 50mm—ensure comfortable wearability across different wrist sizes. Reviewer assessments diverged sharply on value, with one calling the £5,950 price point excellent value for the specifications, while others provided no pricing commentary.

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