Ba111od Chapter 4.17 Onyx Flying Tourbillon 41mm

BA111OD Chapter 4.17 Onyx Flying Tourbillon 41mm (4.17 Onyx Flying Tourbillon)

Technical specifications:
Manual-winding mechanical movement BA.02 (based on BCP Tourbillon)
Flying tourbillon positioned at 7 o’clock
Variable inertia balance wheel
19 jewels
Frequency: 3 Hz (21,600 vibrations/hour)
Functions: Hours and minutes
Power reserve: 120 hours (5 days)

904L stainless steel case with welded lugs
Diameter: 41 mm
Thickness: 9.75 mm

Box-shaped sapphire crystal with double anti-reflective coating

Natural onyx stone dial
White Super-Luminova hands

Crown positioned at 4 o’clock engraved with BA111OD emblem

Water resistance: 5 ATM
Magnetic resistance: 2000 Gauss
Shock resistance: 5000G

Black calf leather strap with crocodile-style embossing
Pin buckle

Description:
The BA111OD Chapter 4.17 Onyx Flying Tourbillon 41mm is a refined expression of contemporary haute horlogerie, combining minimalist purity with the mechanical sophistication of a flying tourbillon.

At its heart beats the manual-winding BA.02 caliber, equipped with a variable inertia balance and delivering an exceptional 120-hour (5-day) power reserve. The flying tourbillon positioned at 7 o’clock creates a distinctive asymmetric architecture that enhances its modern identity.

The 904L stainless steel case, known for its superior corrosion resistance and luster, features a slim 9.75 mm profile, ensuring elegant wrist presence.

The aesthetic highlight is its natural onyx stone dial, offering deep visual contrast against the white Super-Luminova hands, ensuring excellent legibility even in low-light conditions.

With 2000 Gauss magnetic resistance and 5000G shock resistance, the watch balances visual refinement with structural robustness.

The BA111OD Chapter 4.17 Onyx Flying Tourbillon is a collector’s piece that merges natural stone, mechanical architecture and contemporary Swiss design into a striking modern tourbillon interpretation.