LEDERER Prototype #00 is a unique steel prototype marking the pivotal stage before the final InVerto Titanium timepiece took its definitive form. Now presented at Phillips Auction Geneva, it represents the CIC InVerto 39 architecture in its purest exploratory phase, standing outside regular production while remaining at the origin of the design. Far more than an early version, it reflects the moment Bernhard Lederer’s vision was tested, refined, and affirmed. Handled closely by the watchmaker himself, it was used to explore and evaluate the architecture’s strengths and limits. This rare piece captures the final instant before resolution and completion.