Intex 1055 SCI
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| Intex 1055 SCI |
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Description
The Intex 1055 SCI is an unusual, very simply constructed pallet lever movement, whose
constuction bases on the pin lever movement
Jäckle 19/50.
Whether the Intex 1055 SCI is identical to the movement, listed here as
Intex 2820, is hard to tell. Apart from the shape of the movement
three-quarter bridge (which only differs at the winding system) and the number of used
(Blind-) jewels, they seem to be identical.
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| empty main plate |
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The Intex 1055 is generally seen a pin lever movement in column construction, which uses
synthetic rubies on all gears and which has got a pallet lever escapement with a lateral lever.
The ring balance is beared in two Farr shock protection systems; the hairspring is fix connected
to the balance cock and can only be regulated directly on the hairspring key.
The center second hand is indirectly driven; the spring, which holds its axle in position contains
a bearing jewel.
All gears are below one large three-quarter bridge, only the mainspring barrel can be released
seperatly by removing its axle screw.
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| lateral lever |
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Due to its large height, the lever has got a very long axle. On pin levers, this is common,
but on pallet lever movement, it is hardly seen anywhere.
The shape of the lever is very unusual, too: Normally, you would expect a fork shape, but here,
both pallets are on one side of the lever.
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| dial side view |
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On the dial side, you see the rocking bar winding system, on which at least the cover of the
click spring looks a bit crude. On the
Jäckle 19/50 it was not covered
yet.
Really funny is the diamond-shaped plate at "6:30": Here, four cap jewels are integrated. Two of
them have got no function at all, are real "blind jewels", and the two remaning ones are not
very useful, too, since the other jewels, they cover, are at least one millimeter below, and so,
no axle would ever be able to reach them. But at least, they could work as tiny oil reservoirs.
This leads to the impressive sum of 21 jewels, which makes this movement at least numerically
superior to the Intex 2820.
Technical data
| Manufacturer | Intex |
| Caliber | 1055 SCI |
| Number of jewels | 21 |
| Escapement | Anchor with pallets |
| Balance | Nickel |
| Shock protection(s) | FARR |
| Balance cock direction | clockwise |
| Hairspring stud | fixed |
| Regulator type | Hairspring key |
| Movement construction | Fork
Escapement wheel, Fourth wheel, Third wheel, Center wheel, Mainspring barrel |
| Winding mechanism | Rocking bar |
| Setting lever spring | 2 holes |
| Features | SCI |
| Functions | Hour, minute, second |
| Beats per hour | 18000 |
| Size | 101/2''' (measured: 23,2 mm) |
| Image in Flume Werksucher | 1958 27 |
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| Factsheet |
Timegrapher
On the timegrapher, the freshly serviced Intex 1055 SCI show the following graphs, which
are very well on the horizontal positions, except the large beat error (seens as "railway
track"). The accurancy is approx. +10 secs/day, which is very good for such a simple constructed
movement.
On the vertical positions however, the graphs are pretty poor, since the deviations goes up to
more than three and a half minutes. This could be caused by the radial ran out balance of this
specimen. Probably a severe hit was responsible for it. Nevertheless, the lines are still very
steady, and this shows, that the escapement is still in perfect shape!
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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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Usage gallery
