Ba111od Chapter Delta 7 Ella Black Diamond 40mm

7 ELLA BLACK DIAMOND Ba111od Chapter Delta 7 Ella Black Diamond 40mm

Technical specifications:
Swiss Made automatic movement
Base Soprod M100
BA111OD manufacture module 09310 with hypocycloidal time display

Power reserve: 42 hours

Bezel set with 80 natural black diamonds (1.30 mm)

316L stainless steel case with anthracite PVD coating
Diameter: 40 mm
Transparent case back

Satin matte steel dial with multiple levels and laser engraving
Polished steel faceted triangle with white dot

Domed sapphire crystal with anti-reflective treatment

Crown positioned at 4 o’clock engraved with BA111OD emblem

Functions: Hours – Minutes – Date at 2 o’clock

Water resistance: 5 ATM

Rubber strap with deployant clasp
Leather strap with deployant clasp
Easy-Clip system

Description:
The Ba111od Chapter Delta 7 Ella Black Diamond 40mm represents the most refined expression of the CHPTR_Δ manufacture complication, combining Swiss mechanical innovation with contemporary discreet luxury.

This version stands out with its elegant anthracite PVD finish and a bezel set with 80 natural black diamonds, adding subtle brilliance within a timeless monochromatic design.

The CHPTR_Δ architecture revolutionizes time display: instead of a conventional rotating hand, a satellite hour wheel “rolls” around a fixed central wheel. This interaction generates a mathematical cycloid. In this complication, a deltoid hypocycloid (ratio 1/3) is used, causing the tip of the hour hand to trace a perfect triangle.

Developed in collaboration with renowned watchmaker Olivier Mory, this asymmetrical time display is a world premiere that redefines traditional time reading.

The watch houses a Swiss automatic movement based on the Soprod M100, enhanced with the BA111OD manufacture module 09310, offering a 42-hour power reserve.

The 40 mm 316L stainless steel case with anthracite PVD coating, featuring a transparent case back, maintains elegant proportions while showcasing part of its mechanical complexity.

The multi-level satin matte dial with laser engraving reinforces its architectural identity, while the polished steel faceted triangle with white dot highlights the geometric triangular time concept.

Protected by a domed sapphire crystal with anti-reflective treatment, and equipped with 5 ATM water resistance and Easy-Clip strap system, the Chapter Delta 7 Ella Black Diamond blends innovative haute horlogerie with refined jewelry aesthetics.