PUW 74
Description
The PUW caliber 74 is a common ladies' watch form movement with a size of 5 1/2 lignes. It was the successor of the PUW 73.
Video on YouTubeThe only difference between the PUW 73 and 74 is, that the latter one has got a moveable hairspring stud for adjusting the beat error of the balance.
Everything else remained unchanged, the beat rate (18000 A/h), the number of jewels (17, with non ruby-beared minute wheel and cap jewels for the escapement wheel bearings) and the escapement system (swiss pallet lever).
The three leg annular balance is of course shock protected, in the specimen shown here for example in two KIF Ultraflex bearings.
PUW 74 dial side
On the dial side, you see the yoke winding system (identical to its predecessor) as well as the cap jewel of the escapement wheel bearing (at 9 o’clock) and one of the two KIF Ultraflex shock protection bearings.
Technical data
| Manufacturer: | PUW |
| Caliber: | 74 |
| Size: | 5 1/2''' |
| A/h: | 18000 |
| Number of jewels: | 17 |
| Escapement: | Pallet lever |
| Balance types: |
Nickel anular balance |
| Shock protection(s): |
KIF Ultraflex |
| Balance bearing / direction hairspring: | Counterclockwise |
| Moveable stud: | yes |
| Adjust mechanism: | Hairspring key |
| Construction: |
|
| Construction type: | solid construction |
| Winding mechanism: | yoke winding system |
| Setting lever spring: | 3 hole(s) |
| References: |
Flume: K3 77 |
| Mentioning in literature (years): | 1963 - 1965 |
Usage gallery
Dugena ladies' watch