Inverto Titanium – 39 mm

A contemporary expression of mechanical purity, the Inverto Titanium introduces Bernhard Lederer’s inverted architecture in a lightweight Grade 5 titanium case. Measuring 39 mm in diameter and 10.5 mm in height, the concave profile is hand-polished to alternate between satin and mirror finishes, complemented by sapphire crystals on both sides.

At its heart lies Calibre 9019, a hand-wound movement showcasing a dual detent escapement and twin constant-force remontoirs, visible from both sides. Every 15 seconds, these synchronised systems release energy in perfect cadence, ensuring stable torque and exceptional chronometric performance throughout the 38-hour power reserve. Operating at 3 Hz (21,600 vph), the movement is finished to the highest standards: hand-anglage, black polish, circular graining, and fine satin-brushing.

The inverted construction transforms mechanics into architecture, revealing the choreography of gears and springs in motion. Hours and minutes are displayed on the front, while a small seconds indication appears on the reverse, alongside an engraving inspired by the movement’s geometry—a discreet signature of Lederer’s technical artistry.