PUW 561 / Dugena 2509
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| PUW 561 |
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Description
The PUW caliber 561 was the base movement of the last but one movement series
of the Pforzheimer Uhrenwerke. The movement plates show, that it was prepared to
carry a selfwindig mechanism, better known as
PUW 1561.
With 17 jewels, a swiss pallet escapement, an incabloc shock protection and 21600 beats
per hour, it matched the standards of the early 70ies movements.
Another, maybe cheaper version, also called "Dugena 2509", of the 561 was equipped
with the uncommon Ruby-Neutro-Shock shock protection system.

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| version with Ruby-Neutro-Shock protection / Dugena 2509 |
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| dial side view |
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Technical data
| Manufacturer | PUW |
| Caliber | 561 |
| Number of jewels | 17 |
| Escapement | Anchor with pallets |
| Balance | Nickel |
| Shock protection(s) | Incabloc,Ruby-Neutro-Shock |
| Balance cock direction | clockwise |
| Hairspring stud | moveable |
| Regulator type | Hairspring key |
| Movement construction | Fork Escapement wheel, Fourth wheel, Third wheel Center wheel Mainspring barrel |
| Features | SCD,QG,RDR |
| Functions | Hour, minute, second, day |
| Beats per hour | 21600 |
| Size | 111/2''' |
| Image in Flume Werksucher | K3N1 - |
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| Factsheet |
Usage gallery