CHPTR_Δ.3 [MdP]

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, 44mm
Transparent caseback, thickness 12.9mm including glass, lug-to-lug measurement 46mm.

DIAL
Satin matte steel with multiple levels and laser engraving
Faceted triangle in polished steel, yellow 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
Rubber strap with deployant clasp
Easy strap exchange system