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In your own time

Anandhi Gopinath
Anandhi Gopinath • 3 min read

IWC Schaffhausen ups its game by offering the Portugieser Constant-Force Tourbillon, already fitted with a game-changing complication, as a customisable timepiece

The only constant — so says the old adage — is change. But in the world of haute horlogerie, this is not entirely true because, in watchmaking, all efforts are channelled into creating consistency. And for centuries now, one specific inconsistency has challenged inventors and watchmakers: When a watch is fully wound, the mainspring generates its maximum torque, which results in maximum amplitude. But as the tension in the barrel decreases, so too do the oscillations. This phenomenon has a negative effect on the accuracy of a mechanical watch.

It took 10 years for engineers, watchmakers and designers at IWC Schaffhausen to find an answer to this issue, and the result of their efforts is a highly complex constant- force mechanism integrated in a tourbillon. The constant-force mechanism ensures that the escapement delivers an absolutely even supply of power and unprecedented precision.

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