Why second? Because the first one is Wiland MUKI (2009)
At least World First Scerw Cap Full ceramic pen all right?(lmao)
Equip with JOWO 6 and my self-made 3d cobalt nib.
Material - Ivoclar Glass Ceramic,Zirconium Phosphate Ceramics,Macor(All machinable ceramic can be regarded as glass ceramic)
Note! Zerodur and other transparent glass are also glass ceramic but can only be machining in grinding process.
Nib - JOWO 6 or 3D Cobalt Nib
Clip - GR5 Ti with Black PVD
Style - Ink comverter
With JOWO 6 nib
With cobalt nib
Next pen is quartz + titanium + urushi + glass + fluororubber and perfluoroether rubber. Hope it works well.