I've picked up each color of the new metal body Kuru Toga, and they are an extra level of extravagance on an already perfect pencil: https://www.jetpens.com/Uni-Kuru-Toga-Metal-Mechanical-Penci...

Pigma Microns and Uniball One are my go-to pens. Previously it was Signo DXs as well. I think I prefer the barrel of the DX, but the wire clip and general appearance of the Uniball sold me.