The condition of the cock! The bearing is destroyed. A wrong jewel is set and the cap jewel replaced.
The index lever is missing. The screw threads are damaged.

(21) A new bearing is to make, a rubbed setting, and like an original to set. (22) The jewel for the balance has to be domed, its hole has to be Ø 0.1 mm. (23) The cap jewel, a diamond (brilliant), is rubbed into a golden bush.

The index lever is to manufacture. One screw thread is to rebush and to cut.