Breitling Top Time B01vsTudor Grantour Chrono Fly-Back

Top Time B01
BreitlingTop Time B01

Ref. AB01768A/A872/648X/A18DSA.6·MSRP $7,650

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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.

Breitling Top Time B01 at true scale

Top Time B01

Tudor Grantour Chrono Fly-Back at true scale

Grantour Chrono Fly-Back

Diameter

41mm

42mm

Thickness

13.3mm

n/a

Water Resistance

100m

150m

highest

Power Reserve

70h

highest

42h

MSRP

$7,650

$6,050

lowest

Movement

Breitling B01

Automatic

Case

6 specs
Diameter
41mm
42mm
Thickness
13.3mm
n/a
Lug-to-Lug
n/a
n/a
Finish
18k red gold
Brushed and Polished
Water Resistance
100m
150m
Caseback
n/a
Solid

Crystal & Dial

3 specs
Crystal Shape
n/a
Flat
Dial Color
n/a
Black
Indices
n/a
Applied

Movement

5 specs
Caliber
Breitling B01
n/a
Beat Rate
0 vph
28,800 vph
Power Reserve
70h
42h
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$7,650
$6,050
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Reviews

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

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.

Tudor Grantour Chrono Fly-Back

One owner finds the Tudor Grantour Chrono Fly-Back an amazing watch on the wrist, praising the fly-back function as a compelling choice. However, another owner notes the snowflake hand obstructs the 45-minute register between 2 and 4 o'clock, deeming it a design flaw. Overall, owners find the Tudor Grantour Chrono Fly-Back compelling due to its fly-back function, though some criticize the hand design.

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