They can be requested as an upgrade option until the standard 25-295-C pool dries up.
This is soon to be the standard replacement crystal.
As for gen bracelets...you're right...they're priced ridiculously high.
I landed a gen 93250 SEL for 975.00...and sold it the day after it arrived...to me the cost simply wasn't justifiable for a Franken.
I landed the 78790A SEL and it doesn't really look or feel any better than the Noob Bracelet to me but I kept it "only for the gen case set build.
If you can fit an acceptable SEL fit with a rep or aftermarket Oyster, stick with it.....
NOTE: The minor gap found in the SEL fit of the Noob Exp.II's is caused by the lugs, not the SEL. The Noob fits the gen case as well as the gen does..and the gen fits the Noob case like the Noob does...same gap.