Case Material
99.9% pure tantalum — with a mix of concave/convex surfaces, mirror‑polished chamfers, strong vertical brushing and sandblasted accents
Case Size
40 mm diameter
Case Back
See‑through (display) caseback: sapphire crystal + tantalum surround, allowing view of movement and rotor. Double‑domed sapphire front + AR‑coated sapphire back
Dial Colour
Obsidian Black (墨 / “Mò”) enamel‑dial variant
Dial Finish
Grand Feu enamel on a 925‑silver dial base (hand‑hammered silver base then enamel fired). For Mò: obsidian‑black enamel
Luminescence
None
Strap Material
99.9% pure tantalum integrated bracelet (bluish‑grey metal tone). Also offered with alternative sailcloth/FKM rubber strap (black, with tantalum clasp)
Strap Colour
Grey
Buckle Type
Integrated bracelet: telescopic deployant clasp with on‑the‑fly micro‑adjustment system (4 positions), quick‑release system on bracelet/strap
Water Resistance
100 m / 10 ATM
Movement
27 jewels; 28,800 vph (4 Hz); skeletonised, ruthenium‑plated bridges with wind‑motif finishing; automatic winding; adjusted to 5 positions and temperature; hacking seconds
Caliber
Customized Girard‑Perregaux GP03300 automatic calibre
Power Reserve
48 Hrs
Functions
Hours, Minutes, Seconds (automatic movement; hacking seconds)
