I was surprised to hear the lecturer say that traditional hairsprings can’t be repaired. I’ve seen several twisted and bent metal hairsprings repaired by a skilled watchmaker to perfection.

Just amazing lecture! Thank you ❤ I enjoyed every minute of it.

Merci beaucoup pour les vidéos !

great and very educational video! thank you

Don't get Bill Sanders started on Silicon hairsprings 😂 😂 😂

@Jeff Kingston this was a very interesting and informative lecture, many thanks. I'd be interested to know how do the recently introduced Nivachron balance springs compare to the silicon ones. I wonder what might have been Swatch group's motivation here, were silicone springs perhaps "too good" for their entry level brands?

Inertial regulation is Medieval Haute Horlogerie - as in the Verge and Foliot.

I have a question about copper beryllium how it it affected by a magnetic field in relation to others?

Why there is “wind noise” from the microphone?

“Black women did these calculations.” White men in the room start feeling uneasy. Someone whispers under their Jewish beard. “I didn’t know thats possible?”