His name is Yukio Inami, and he only accepts orders for steam and electric locomotives from the Japanese National Railways before the 1950s, in O and OJ scales. He was selected as a “Yokohama Meisters” by the city of Yokohama in 2023. The video (6:39) was created by the city.
0:29 Turning a 19.0mm spoke wheel
0:56 Pressing in a 27.5mm spoke working wheel for electric locomotives
1:27 Running a C622 steam locomotive (O gauge)
2:22 Press bending L-shaped mounting material for electric locomotive cab
2:39 Shearing (brass plate cutting)
2:50 Milling axle box for working wheels for steam locomotives
3:18 Drilling axle holes for axle box for electric locomotives
3:34 Assembling a support spring
3:57 Soldering a support spring
4:01 Crimping an equalizer and a hoisting link
4:21 Soldering a steam locomotive cab
4:42 Scraping
5:08 Running an EF504 electric locomotive (OJ gauge)
5:43 C622 Actual running of a steam locomotive (O gauge)
6:13 Actual running of a C622 steam locomotive (O gauge)
Next is a video (13:38) released by ProcessX in 2022, when he was 73 years old.