The entire Da Vinci case design was inspired by Leonardo da Vinci’s circular fortress studies for the harbour of Piombino.
The concentric geometry, rounded bastions and harmonious proportions from these sketches were deliberately translated into the case architecture, the lugs - and even the shape of the pushers.

In 2017 IWC introduced the IWC Da Vinci Chronograph Ref. IW392101, and the pushers became more „conventional“.
Yet the watch still had a very … baroque character.