AHS 152
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| AHS 152 |
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Description
The manufactury AHS (Alfred Hirsch, Schwenningen, Germany) was famous for mass production of
simple pin lever movements. The caliber 152 described here, was made in the fifties and was
a very nice exception, since it was a true pallet anchor lever movement.
Although it uses a service unfriendly pier construction with one single plate and on the dial
side only a rocking bar winding mechanism and a simple flat click spring, it is equipped with
a screw balance with regulator arm and a block for the indirectly driven center second hand.
The balance runs in two trishock-like shock protection systems.

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| dial side view |
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Technical data
| Manufacturer | AHS |
| Caliber | 152 |
| Number of jewels | 17 |
| Escapement | Anchor with pallets |
| Balance | Nickel screw balance |
| Shock protection(s) | Rufarex |
| Balance cock direction | clockwise |
| Hairspring stud | fixed |
| Regulator type | Long regulator arm |
| Movement construction | Fork Escapement wheel, Fourth wheel, Third wheel, Center wheel, Mainspring barrel Center second pinion |
| Features | SCI |
| Functions | Hour, minute, second |
| Beats per hour | 18000 |
| Size | 11''' |
| Image in Flume Werksucher | 1958 b.36 |
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| Factsheet |
Usage gallery