I really like how clean he works. They must cost a fortune the way they are made.
edit: prices are listed, 135 euros each, so 810 euros for the tubes for a six digit clock, the clocks go from 1400 to 2000 euros. It depends on how you look at it: for the utility value of a clock that's pretty high but for the amount of work it is probably on the low side, and by keeping them 'hand made' there is some scarcity effect at work, they'll never be things that everybody has so that's probably a happy medium for him. I wonder how many he's making and whether or not he is tempted to move away from the artisanal process to move into more automated production, larger batches and so on.
I also wonder why he fires the getters prior to sealing the exhaust tube, traditionally the getters were ignited after achieving high vacuum and sealing the envelope and removing the remains of the exhaust pipe rather than induction heated prior to sealing (they're the cause of the metal deposit at the top of many vaccuum tubes). The way he does it you risk re-contamination after/during the gas is introduced with any one of the following process steps, the getters really should come last. But it works well enough I guess :)
That video is a masterclass in how to produce something like this, quiet, just the work, no distractions at all. And the website looks great as well. This guy really has something to be very proud of.
What a guy.