10
LF Durable Metal Pen, steel construction
(lemm.ee)
Just swap out the internals with the clicker from an F702, that's what I've been doing for years.
EDIT: a space
SECOND EDIT: Also put a space pen refill in that sucker, you deserve it. Just make sure to pull the little plastic bit in the tip.
Parker Jotter, hardy and cheap.
fisher space pen?
https://www.riteintherain.com/all-weather-pens
I've been pretty satisfied with the rite in the rain pens. The ink is pretty nice for writing in all conditions. They have a pretty wide variety to choose from.
What do you carry on a daily basis?