Felsa 146 ?
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| Felsa 146 ? |
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Description
The old ladies' watch movement shown here was identified by a watchmaker as a Felsa 146.
However, there's a small insecurity, since the lower dial foot is according to the Flume K1
Werksucher a little bit more distant to the balance, than on this movement. This leads to the
question mark of this page.
This movement was available in different versions, differing by color and for example by the
escapement wheel cap jewel, which was, if avaibable, framed by a very nice silver colored plate
like on old pocket watch movements.
All versions have got the same balance component in common: The slit bimetal balance beats with
contemporary 18000 A/h. The effective length of the hairspring is set by a long regulator arm. The
escapement controls a conventionally constructed pallet anchor movement with nicely old-fashion designed
bridges.
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| version without escapement wheel cap jewel |
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With or without cap jewel for the escapement wheel - this very well made movement is very
beautiful!
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| empty main plate |
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The main plate reminds a lot of those of an old pocket patch movement.
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| dial side view |
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On the dial side, there's no surprise. This movement uses a yoke winding system and the
non-shock-protected balance runs in bearings with cap jewels.
On the silver-colored version, the digits "43" are stamped onto the dial side - maybe this is a hint
for the final identification of the real caliber number?
Technical data
| Manufacturer | Felsa |
| Caliber | 146 |
| Number of jewels | 15,16 |
| Escapement | Anchor with pallets |
| Balance | Bimetal screw balance |
| Shock protection(s) | none |
| 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 |
| Winding mechanism | yoke |
| Setting lever spring | 3 holes |
| Functions | Hour, minute |
| Beats per hour | 18000 |
| Size | 73/4''' (measured: 17,3 mm) |
| Image in Flume Werksucher | 1947 20 |
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| Factsheet |
Timegrapher output
golden-colored version
This specimen was cleaned and olied. The timegrapher outputs for this, more than 60 year
old movement, are impressive!
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| dial down |
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| dial up |
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| 12 up |
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| 3 up |
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| 6 up |
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| 9 up |
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defective, silver-colored version
That's the way, a timegrapher output can look, when you test a movement, where "only" one
of the balance pivots is bent.
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| dial up |
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| dial down |
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| 12 up |
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| 3 up |
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| 6 up |
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| 9 up |
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Usage gallery
This movement in the silver colored version with 15 jewels was donated by
Klaus Brunnemer. Thank you very much!
