CHPTR_Δ.5 [LABEL NOIR] Limited Edition

CHPTR_Δ (Chapter Delta) is the first BA111OD manufacture watch complication, a unique timepiece that represents time in a revolutionary way. Developed with renowned watchmaker Olivier Mory, it introduces an entirely new approach to time display. Instead of simply rotating a hand around a central axis, the movement was conceived to roll a satellite hour wheel around a fixed central hour wheel. This creates a deltoid trajectory, meaning the tip of the hour hand traces a triangle, a world premiere in watchmaking. With its asymmetrical reading of time, CHPTR_Δ challenges convention and offers a bold new way to experience horology. Presented here in a blue execution, this version brings a more vibrant and expressive dimension to the concept, highlighting its architectural design, depth and distinctive identity. MOVEMENT Automatic Swiss Made movement enhanced with BA111OD manufacture module 09310 with hypocycloidal time reading (base: Soprod M100) POWER RESERVE 42 hours CASE Stainless steel 316L anti-allergic with black PVD treatment, 44mm, thickness 12.9mm including glass, lug-to-lug measurement 46mm. Transparent caseback DIAL Satin matte steel with multiple levels and laser engraving Faceted triangle in polished steel with black PVD treatment, green dot GLASS Domed sapphire crystal with antireflection treatment CROWN At 4 o'clock, engraved with the BA111OD emblem FUNCTIONS Hour-Minute, date at 2 o’clock WATER RESISTANCE 5 ATM STRAP Black textile strap with green stitching Deployant clasp Easy-clip system