Spinner Top Stainless Steel With Ruby Pivot --- Made In The USA --- 5 Minutes?

Description

I am a semi-retired machinist that needs to stay busy in my little workshop at home.
This top is entirely machined by myself using processes and technics that I learned from from the old time machinists when I was just beginning my career more years ago than I care to admit. I am using Hardinge machinery and tooling that is from the 1950s and 60s. The knurling tool is made by Brown and Sharpe and dates to early 1900's. Hard to believe that this stuff is still relevant in today's world.
It is machined of 360 Brass with a ruby pivot in the business end. On my granite counter top I can get it to 1 minute 50 seconds? Can you get it to 2 minutes? Good luck and Thank you for looking.