Kienzle 48/10c
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| Kienzle 48/10c |
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Description
The Kienzle 48/10c is a representative of the large caliber series 48, here with
indirectly driven center second hand and 10 bearing jewels.
The 10 jewels are distributed in an unusual way:
- balance bearing: 4 jewels
- balance: 1 jewel (ellipse)
- lever bearing: 2 jewels
- escapement wheel: 1 jewel (dial side)
- fourth wheel: 1 jewel (movement side)
- third wheel: 1 jewel (movement side)
Why the critical escapement wheel is jewel-beared only on one side, and especially only on the
lesser stressed dial side, is unknown to me. It's also noteworthy, that only that bearing of
the third wheel, which drives the gear for the indirect second, contains a jewel, the other
side note.
The gilt-colored ring balance is beared in two inhouse Kienzle shock protections, which consists
both of one fixed bearing jewel and one vertically moveable cap jewel. This means, that the
balance is secured against vertical shocks like knocking on the crystal, but not agains
shocks from the side, which could easily bend or break the thin balance axles. And finally,
the three-leg shock protection on the movement side has got extremely good flying qualities...
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| main plate |
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The movement construcion is the same as on most pin lever movements and except the escapement
lever, everything is housed below one large three-quarter plate. Only the mainspring barrel can
be released extra by removing one screw.
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| dial side view |
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On the dial side, you see the rocking bar winding mechanism and the click mechanism; both
share the same spring!
Technical data
| Manufacturer | Kienzle |
| Caliber | 48/10c |
| Number of jewels | 10 |
| Escapement | pin lever |
| Balance | Nickel |
| Shock protection(s) | Kienzle |
| 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 | Rocking bar |
| Setting lever spring | 4 holes |
| Functions | CI |
| Beats per hour | 18000 |
| Size | 101/2 (measured: 23,2 mm) |
| Image in Flume Werksucher | 1958 42 |
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| Factsheet |
Usage gallery
