Bell & Ross BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPHvsTAG Heuer Monaco Split Seconds 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.

BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH

Monaco Split Seconds Chronograph
Diameter
45mm
41mm
Water Resistance
n/a
30m
Power Reserve
n/a
65h
MSRP
$486,000
n/a
Movement
Bell & Ross BR-CAL.285
TAG Heuer TH81-00
Case
5 specsCrystal & Dial
5 specsMovement
8 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Bell & Ross BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH is noted for its modern, Transformer-like 45mm case with switch-style chronograph pushers and a skeletonized movement visible through a sapphire dial. Reviewers praise its superb and qualitative finishing and dial. However, the watch is criticized for its high price, with limited editions ranging from $163,000 to $238,000, and its movement relies on a Dubois-Depraz module over an ETA base, a point of consideration against competitors with in-house calibers. On balance, reviewers consider the Bell & Ross BR-X1 TOURBILLON SAPPHIRE CHRONOGRAPH a significant image-builder for the brand, with its main drawbacks being its high price and modular movement.
Owners and reviewers praise the TAG Heuer Monaco Split Seconds Chronograph for its technically complex and visually striking design, featuring a skeletonized dial and futuristic titanium case. The TAG Heuer TH81-00 automatic movement is noted as a milestone for the brand, showcasing mature mechanical watchmaking. However, some find the 41mm case size and 15.2mm thickness wear large, and the 30m water resistance is a consideration. The CHF 150,000 price point limits its appeal to a niche collector base. Overall, owners and reviewers rate the TAG Heuer Monaco Split Seconds Chronograph highly for its innovative design and technical achievement as a statement piece.
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