Beaufort BicompaxvsBreitling Navitimer B01 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.

Bicompax

Navitimer B01 Chronograph
Diameter
40.5mm
41mm
Lug-to-Lug
47mm
n/a
Thickness
13.8mm
13.6mm
lowest
Water Resistance
50m
highest
30m
Power Reserve
63h
70h
highest
MSRP
$810
lowest
$23,500
Movement
Sellita SW510
Breitling B01
Case
7 specsCrystal & Dial
2 specsMovement
6 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
Owners widely praise the Breitling B01 movement for its robustness, COSC-certified accuracy often within +/- 2 seconds per day, and snappy chronograph action, with a 70-hour power reserve. Some owners find the 41mm case wears well, while others note that larger variants, like the 43mm, can wear smaller than their dimensions suggest due to finishing. The watch is priced around $6,500, though some owners question its value retention and resale potential, with one noting a potential 50% loss on worn pieces. One owner finds the date window placement awkward. Overall, owners rate the Breitling Navitimer B01 Chronograph highly for its precise and robust B01 movement and attractive design.
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