With the exception of the 600 / 6000 series, HPP movements are pretty rare to find. Maybe they were not produced in big quantities. The HPP 114 shown here is a pretty well made manual wind movement with a large diameter of 13 lignes, which was suitable for the popular extra flat watches in the 1960ies.
The HPP 114 uses 17 jewels, and since the minute wheel is ruby beared on both sides, too, there were no cap jewels required to achieve the “magical” number of 17 jewels.
Thanks to the large plate, the movement train could be made one-storey and flat with a large mainspring barrel, directly driven center minute wheel, third wheel, seconds wheel and steel escape wheel.
It already used a screw-less anular balance, which is secured in two inhouse “Hercules” shock protection bearings. It beats slowly with 18000 A/h and controls a classical swiss type pallet lever movement.
For regulation purposes, a long regulator arm with a scale on the balance wheel cock is used.
Since this movement has got no calendar mechanism, the dial side looks pretty simple. At 3 o’clock you can see the yoke winding system with the large setting lever spring, which covers the change wheel largely.
The only noteable detail is the “Hercules” shock protection at 9 o’clock, which is truely intetrated into the dial plate and for whose three-leg spring, there are undercover cutouts in the plate.
|Number of jewels:||17|
Nickel anular balance|
Hercules (Henzi & Pfaff)|
|Balance bearing / direction hairspring:||Clockwise|
|Adjust mechanism:||Long regulator arm|
|Construction type:||solid construction|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||4 hole(s)|
|Size:||13''' (measured: 28,5mm)|
Flume: K2 19|