Bell & Ross BR-X1 Tourbillon RS17vsOmega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm

Ref. 304.63.44.52.01.001·MSRP $42,400
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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.

BR-X1 Tourbillon RS17

Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm
Diameter
45mm
44.3mm
Lug-to-Lug
n/a
50mm
Thickness
n/a
16.9mm
Water Resistance
100m
100m
Power Reserve
n/a
60h
MSRP
$171,720
$42,400
lowest
Movement
Bell & Ross BR-CAL.283
Omega 9904
Case
7 specsCrystal & Dial
5 specsMovement
8 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely report a niche, futuristic, and industrial design for the Bell & Ross BR-X1 TOURBILLON RS17, with good readability despite its skeletonization, though some find its aesthetic dated and its square case design awkward. One owner wishes for a larger date window. The watch features a manually wound caliber BR-CAL.283 with a 4-day power reserve and 100m water resistance. On balance, owners and reviewers acknowledge the Bell & Ross BR-X1 TOURBILLON RS17's distinctive design but are divided on its overall aesthetic appeal.
The Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm is widely praised for its detailed and photorealistic moonphase complication, featuring a boot print Easter egg, and its exceptional finishing, including a ceramic bezel and sun-brushed dial. Owners and reviewers consistently highlight the beauty of the complication and the overall build quality. However, the watch's 44.25mm case size and considerable thickness (around 16.85mm to 17mm) are frequently noted as making it wear large and potentially challenging to fit under dress cuffs, with some suggesting it feels "chunky" or like a "beast." One reviewer found the crown guards sharp when winding and the crown difficult to pull out. On balance, owners and reviewers appreciate the Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm for its stunning moonphase detail and high-end finishing, despite its substantial size.
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