I hope that FX will write a review on this piece (I can't wait to have his thoughts), so I will go straight to the point:
Octahedrite case (milled from a metallic meteorite), of 53mm on 37mm
Every case will be slightly different (this is a natural material)
5 days hand wound caliber at 28800 vph, with jumping hour, 33mm wide
9850 usd for the subscription