Breitling Top Time B01vsBremont Terra Nova 42.5 Chronograph


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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

Terra Nova 42.5 Chronograph
Diameter
41mm
42.5mm
Thickness
13.3mm
lowest
14.8mm
Water Resistance
100m
100m
Power Reserve
70h
n/a
MSRP
$7,650
$4,950
lowest
Movement
Breitling B01
Bremont ENG345
Case
5 specsCrystal & Dial
1 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
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.
Owners report the DLC coating on the Bremont Terra Nova 42.5 Chronograph is durable, though one noted a ding on the barrel. The chronograph hand resets slightly off-center for one owner. Reviewers describe the 42.5mm case as blocky with satin finishing and minimal polishing, noting its 48.8mm lug-to-lug and 14.8mm thickness felt bulky on leather but improved with elastic or rubber straps. The winding action is satisfying, and the chronograph pushers are crisp, though the start/stop pusher requires significant force. The Cupro-Aluminium case is expected to patina over time, and the watch features a bi-directional bronze compass bezel with a black ceramic insert and a green gradient dial with full-block Super-LumiNova numerals. The rear sapphire caseback on a prototype was too dark to appreciate the movement, and text around a tourbillon window detracted from the dial.
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