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Nice video.
At some points they use a process to turn some of the components a blue/purple colour. What is going on there?
https://en.wikipedia.org/wiki/Tempering_(metallurgy)#Tempering_colors
Five-Hats
@moocher
Not much horology in this thread. I found this distracting enough. At some points they use a process to turn some of the components a blue/purple colour. What is going on there?
https://www.youtube.com/watch?v=dU7iKNmQBIs&feature=youtu.be