Here's master watchmaker Mikael Conus assembling a tourbillon. At the age of 14, he began watchmaking school and finished at 18 yrs old; and since then, has been in the watchmaker profession for 10 years already. You wouldn't know he's already been doing watchmaking for over 10 years because he still looks so young!
Look at those steady hands!
And here are a couple more random shots of Mikael in action and movement parts on his workbench.
Did you know it takes Mikael approximately 3 hours to disassemble and reassemble a tourbillon, assuming there are no problems such as timing, etc.?