PUW 1561
Description
The PUW caliber 1561 was a very familiar german selfwinding movement of a good quality. It was launched in 1971 and superseded by the caliber 1661 in 1975.
view without oscillating weight
Typical for the PUW 1561 is its very healthy rotor winding sound, for which the click spring at “9” is responsible. With its help and with the tiny gear at “6:30” the rotor winds in both directions. The decoupling works with another tiny and freely working gear at “6”.
view at selfwinding mechanism
The whole selfwinding mechanism is very sophisticated and complex, but marks the climax of german watchmaking at the early 1970ies.
view without selfwinding mechanism
A tiny detail: The escapement wheel is beared with a very unusual type of cap jewel, since it is not a round one but almost shaped as a block. The advantage of this execution was, that the cap jewel did not have to be removed in a cleaning machine for cleaning the bearing and it was easier to lubricate afterwards.
detail: cap jewel of the escapement wheel bearing
The rest of the movement is the same, as on the caliber 561, inculding the very complex constructed date correction mechanism. It works by turning the time back and forth, but advances only when the crown is pressed afterwards.
PUW 1561 dial side
Technical data
| Manufacturer: | PUW |
| Caliber: | 1561 |
| Caliber base: | PUW 560 |
| Size: | 11 1/2''' |
| A/h: | 21600 |
| Number of jewels: | 21 |
| Escapement: | Pallet lever |
| Balance types: |
Nickel anular balance |
| Shock protection(s): |
Incabloc |
| Balance bearing / direction hairspring: | Clockwise |
| Moveable stud: | yes |
| Adjust mechanism: | Hairspring key |
| Winding mechanism: | yoke winding system |
| Features: |
|
| Production period: | 1971-1975 |
| References: |
Flume: K3N1 - |
| Mentioning in literature (years): | 1971 - 1977 |
Usage gallery
Herzfeld Automatic gents watch