Lots of start/stop/start/stop when you're dealing with boring, turning, honing, sanding, aclimating, resanding, vacuum chambering, resanding, oiling, resanding, buffing, & finishing, etc.
But all tallied, probably about 3 hours with my hands on the call... over about 3 days.
The lathe work, including the banding was probably 40 - 50 minutes.