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No not baby photos, teens to early 30s. With the bike about 20, graduation about 30.

You shoulda been born in Texas. Tough to make a vacuum tube though. You can substitute with a MOSFET eq ckt I guess. I was playing around making a pinion the other day. More to it than meets the eye.

Early ‘90s Debenhams in Oxford Street at InTime Watch Repairs. The older guy was one of my mentors Mr John Campfield, fantastic ex-Omega watchmaker. Good times - black hair gone now!

I appreciate your unbridled enthusiasm. We're you born in Texas? I set an ebay watch on impossible parts...eventually they show up.

Indeed. I would not attempt one. Here is my messy Sherline setup

This conversation is becoming a very confusing. The etachron system is a very nice system for manufacturing watches. As you know it consists of two components the stud and the regulator pins. Beautiful thing of this system is you can open up your regulator pins center the hairspring and as you close the pins they will close equally on both sides providing you centered it in the first place. It's not like you're going to become closer to one side or the other as the definition of the regulator pins is a bit confusing it's not exactly a slot sort of. I'm thinking maybe a little eight reading will be helpful for you. Then the file name was changed by me at the US patent but the wording of Seiko may or may not actually be attached to it soared up? I just did that so I can find it in my files. Normally patents are in people's name if they work for a company the company name will be there you'll notice the person lives in Japan which is interesting as the name would imply that this is a Swiss product. Somewhere I think I have the patents for the stud and I believe that is Swiss like a lot of things their Japanese and Swiss and then the Japanese let the Swiss name stand as it seems you more popular in case as you read up on the patents of the regulator pins or pin will see and it should explain exactly how and why it works also why it's important to always close at an open in specific directions because the pins actually have a shaped to them it's very hard to see the shape as it's very tiny. As a reminder with this system it's mass-produced. I wouldn't be at all surprised if they use cameras and computers to do all of the adjustments. The meaning of this is that the majority of watches will function as there supposed to and do what they're supposed to do the system will allow us for some minor in tolerance and has more than likely as I said no human hand is ever touched those watches that's the way they left the factory and they work fine. US2007091729A1 seiko etachron.pdf

Yes, this is not a basic part. Here are some pictures of making one

From what I see, the crystal is made of mineral glass and is secured to the bezel with a sealing ring. If you might want to replace the crystal without removing the bezel or the movement, I think it's possible, but risky. You have to suck out the old crystal without breaking it into tiny particles. I would not do that. If you remove the movement first you can press the crystal out and press a new one in without removing the bezel.