On my Speedy Pro, vintage, Broad Arrow, and officer's model, the crown does not screw in, so no. But on my SMP GMT and PO, sure, I screw it in all the way.
Dan
On my Speedy Pro, vintage, Broad Arrow, and officer's model, the crown does not screw in, so no. But on my SMP GMT and PO, sure, I screw it in all the way.
Dan