#is the balance wheel- it needs jewels (2), but these are capped jewels, so the “count” rises to (4).
#3 is the pallet fork and escape wheel. Those need jewels (4)
#2 is the going train. These can all be jeweled (6); but as you move away from the escape wheel the speed reduces and load increases. Bushings become common, and are quite typical on the mainspring barrel arbor.
So, even a “fully jeweled” movement is not going to have a lot of jeweled pivots. 14 if you count the cap jewels. 16 if you count the pallet stones too. MAYBE there are movements where the mainspring barrel arbor is jeweled, but I would expect a lot of breakage in that location due to the torque.
Note the typical red jewels are Ruby, but older watches (such as one of mine) actually use white sapphire jewels.