PUW 49
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| PUW 49 |
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Description
One of the early form movements of the Pforzheimer Uhrenrohwerke is
the PUW caliber 49. It already contains seventeen jewels, among them two cap
jewels for the anchor wheel, and a shock protected screw balance. Other
versions don't use cap jewels and a shock protection system and therefor only
contain 15 jewels.
On the dial side, there's the yoke winding system, which turns the
minute wheel by two gears. This construction is pretty interesting and
rare, since it makes the time turn back when turning the crown
forward clockwise.
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| PUW 49, version without shock protection |
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| dial side view |
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| Zifferblattseite, Version without shock protection |
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Technical data
| Manufacturer | PUW |
| Caliber | 49 |
| Number of jewels | 15/17 |
| Escapement | Anchor with pallets |
| Balance | Nickel screw balance |
| Shock protection(s) | ???/none |
| Balance cock direction | counterclockwise |
| Hairspring stud | fixed |
| Regulator type | Hairspring key |
| Movement construction | Fork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Mainspring barrel |
| Functions | Hour, minute |
| Beats per hour | 18000 |
| Size | 53/4 x 83/4''' |
| Image in Flume Werksucher | 1952 32 |
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| Factsheet |
Usage gallery
