The midget 400 day clock is slightly shorter than the miniature. I recently repaired a midget dated 9 62 (September 1962), and its height without the dome is 5 9/16 inches.
The midget movement has a pin-pallet escapement instead of a Graham deadbeat.
Repair job 6631. I polished the pivots, smoothed some damaged teeth on the mainspring barrel, and replaced the suspension spring. I used a 0.0022 inch thick Horolovar suspension spring (a previous clock of the same model I repaired (see Schatz Midget 400 Day Clock Made in 1968). needed a 0.0023 inch thick spring (I'm not sure if the difference was in the suspension springs or the pendulum).