What will be the new materials used in future watches ?

Hi, I was not sure where to post this so I chose the Open discussion section.

In relation to a thread on the co-axial movement over at the Modern watches section, and specially as a follow up to Horlogerie's post :

I'm wondering which new materials could be used to make watch parts which are more resistant to wear and require less to no oil.

Would it be possible to make an extensive use of, say, silicon carbide or sapphire ? Or even the mighty graphene ?
Given these materials seem to be very resistant to wear :


Source : https://global.kyocera.com/prdct/fc/list/tokusei/koudo/index.html

What prevents the adoption of such materials in watch parts ? Is it the lack of ability to cost-efficiently manufacture them at minute scales ? Or are there undesirable aspects about their mechanical properties ?

Are major manufacturers such as Rolex and Swatch even working on this ?

Cheers.

Unicorn horns and Kryptonite.

Ceramic balance wheels?
Artificial diamond bearings?
There's a dry film lubricant developed for Artillery and Naval gun barrels that was so slick the barrels could be cleaned simply by a blast of compressed air. Not even metal fouling would stick to it. I used some on an antique revolver once and minutes later century old lead and powder fouling just dropped out of the bore when tapped on a table top.
Unfortunately the odor was very attractive to cats and they would not leave the bottle alone, knocking it over at every opportunity and the liquid carrier penetrated the seal of the top like water through a wash cloth.

I've wondered it this could be used as a semi permanent lube for watches, with the added advantage of being immune to deep sub zero cold. Also completely corrosion resistant should a dive watch break a seal. Just hang the watch over a low heat source till the water dried up.

I didn't know about dry film lubricants. This would seem like a (relatively) low tech, immediately applicable solution.
Plus, it could be used to "retrofit" older movements coming back to the service centre for a revision.