Bernhard Lederer Central Impulse Chronometer InVerto (2024)

44 mm diameter x 11.5 mm thickness 904L stainless steel case with black DLC coating, domed sapphire crystal with sapphire caseback, water-resistant to 30 m. No traditional dial-time is read via skeletonized hands with laser-engraved hour markers on the underside of the crystal. The fully inverted movement, Calibre 9018, is on full display, built around a double barrel system driving two independent gear trains, each equipped with its own constant-force remontoire. At the heart sits a mirrored chronometer escapement with central impulses-delivering energy directly from the barrel to the balance with extraordinary precision. The hand-wound movement runs at 3 Hz and holds a 38-hour power reserve. Featuring a variable inertia balance wheel and Breguet overcoil, it includes 46 jewels and 220 components in total. Black alligator strap with DLC-coated steel folding clasp. Subtle inscriptions on crystal and caseback complete the minimalist yet dramatic presentation. Limited to 18 pieces. Priced at CHF 150,000