ESA 9200
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| ESA 9200 |
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Description
The ESA caliber 9200, called "Fontronic", is one of the rare, very small
electronic (transistor and resistor) ladies' movements with a real small size.
It is gilt colored and normally covered by a gilt cover, which only gives access
to the battery and the hairspring regulator.
It uses a rare Lubrifix 66 shock protection and a fine regulator with an excenter.
On the tiny balance wheel, there are two permanent magnets, which correspond with
the electronic driven coil of the main plate. This is a common principle of the
last-but-one generation of electromechanical movements.
Although this movement is that tiny, it already features hacking the balance and
a complication, which makes the second hand jump only every eight beats, once a
second. Unfortunately, on the 9200 on my bench, this feature is broken. Probably
this movement is a tad too small for these kind of complications.
Technical data
| Manufacturer | ESA |
| Caliber | 9200 |
| Number of jewels | 7 |
| Shock protection(s) | ??? |
| Balance cock direction | centered (bridge) |
| Hairspring stud | moveable |
| Regulator type | Excenter |
| Features | SCD |
| Functions | Hour, minute, second, electromechanical |
| Beats per hour | 28800 |
| Size | 63/4 x 8''' |
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| Factsheet |
Usage gallery
