Brass accessories plated with 0.5µm  thick 23k gold.

Stainless steel clip plated with 0.5µm  thick 23k gold - arc type

Brass cap plated with multiple layers of glossy black lacquer. The cap is closed by pressing

Brass body plated with multiple layers of glossy black lacquer.

Black ABS (acrylonitrile butadiene styrene) grip

Stainless steel nib, plated with 0.5µm  thick 23k gold, having on top an iridium point. The pen works with both, cartridges and converter system.