A Threaded Watch Back -- Tiny and Tricky Threads

Making a threaded watch back with tiny and tricky threads was not easy. I needed room for an O-ring as well, so there wasn't a whole lot of room for threads. I didn't get a working version the first time around either.
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* Part 1: • Watch Case - Machining...
* Part 2: • Watch Case - Machining...
* Part 3: • Watch Case - Machining...
* Making Tiny Custom Threads for a Custom Watch Back: • Making Tiny Custom Thr...

[@ericlakota1847]

I have no experience at all i find this fascinating id love to hang out around this work for a few weeks

[@seanburnett7760]

One of my favorite channels!

[@metalillness5951]

Well done sir! That had to be VERY satisfying when you first installed it with the o-ring. I was right there with you enjoying the success.

[@dinglala6285]

Well-done sir ❤

[@roylucas1027]

Good job sir.

[@jamiedco]

I love seeing thatf your fluk is still in use.

[@JohnSL]

Fun, eh? I'm not near my machine now, but I seem to recall the graphics are on the same side as the magnet. Have you thought about adding lettering/graphics to the other side so you could see the branding when it's, for example, on my machine?

[@jamiedco]

@@JohnSL i had not considered that but I think that my be something I will do going forward

[@patkirk960]

Very nice John. Like the work holding. That design works so well!

[@David_11111]

"and it looks Good" :)

[@David_11111]

yay

[@GregsGarage]

This is great stuff. High level of difficulty.

[@iangraham6730]

Great work John! At 4:44 when you show the cross section, there is a lot of wasted meat to the left of the threads, maybe a good spot for the o-ring or a gasket? 🤔 That way you wouldn't have to worry about it binding with the threads.

[@JohnSL]

I thought about doing that. I chose not to because it would have required a smaller end mill, that would therefore be more likely to break. The current design does the job and is very much like a couple of other watch cases I've looked at with screw-on backs.

[@iangraham6730]

@@JohnSL Whatever works at the end of the day, and makes life that little bit easier I guess 👍

[@rexmundi8154]

Nice work. I have a Haas DM-2 with the next gen control

[@camcompco]

Hi John, love your content, I noticed that when you were probing the part that your prob tip was very small. Do you have the probe part number you used?
Thanks much

[@VTeslaV]

Are you also selling these watches? How much do they cost?

[@Copper1268]

Always thread last