By offering a watch that reveals its movement through a transparent case back,
Rolex continues to innovate whilst echoing its watchmaking tradition. Calibre 7140
bears a cut-out oscillating weight in 18 ct yellow gold with three arms, engraved
with the words ‘Chronometer Perpetual’ and benefiting from an optimized ball
bearing. The movement boasts some remarkable finishes including the exclusive
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Rolex Côtes de Genève – a celebrated traditional watch decoration, reinterpreted
with a polished groove between each band. The window, made of virtually
scratchproof sapphire, provides proof that, for Rolex, the aesthetics of the
movement are as important as its performance.