Bremont Supermarine ChronovsTudor Grantour Chrono Fly-Back
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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.

Supermarine Chrono

Grantour Chrono Fly-Back
Diameter
43mm
42mm
Thickness
15.9mm
n/a
Water Resistance
300m
highest
150m
Power Reserve
n/a
42h
MSRP
$6,850
$6,050
lowest
Movement
Bremont BE-50AE
Automatic
Case
8 specsCrystal & Dial
2 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Bremont Supermarine Chrono for its COSC-certified automatic movement running at an impressive +0.5 seconds per day and its hardened case with amazing finishing. The 43mm case is considered large, but its dial pattern and understated bezel markings allow it to transition effectively from rugged use to evening events, offering excellent legibility. The chronograph pushers are described as larger than average but well-balanced with the crown. One owner reported better timekeeping after a warranty service, highlighting positive customer service. On balance, owners and reviewers rate the Bremont Supermarine Chrono highly for its excellent timekeeping and impressive case finishing at its price point.
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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