ETA 2512-1
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Description
The ETA 2512-1 shown here is a typical representative of mechanical movements produced in the "golden" quartz age, the early eighties. It is a modern constructed ladies' watch movement with a bare finish.The construction bases on compareable smaller ETA movements such as the ETA 2410 and ETA 2442, with the only difference, that the diameter was enlarged.
The three-leg ring balance is of course beared in two Incabloc shock protection systems, the hairspring is attached with a modern-type connector to the moveable hairspring stud, and its effective length can be regulated with yet another modern ETA-type construction directly at the hairspring only.
A characteristic thing of this movement is its indirectly driven minute hand (achieved by the third wheel), which allowes increased space for a larger balance and a larger mainspring barrel. Both are responsible for longer runtime and increased precision. In constrast to many other ETA movements, the dial-side bearing of the third wheel is realized by a synthetic ruby, while the mainspring barrel lacks a ruby (which is not really neccessiary btw.).
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On the dial side, you see the yoke winding system and the poking out of second wheel and escapement wheel. The latter is pretty unusual and not often seen elsewhere, especially not with three to four visible teeth.
At "8", you see the pressed-in ruby bearing of the third wheel.
Technical data
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| Factsheet |
Usage gallery
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| Links |
Ranfft Uhren: ETA 2512   |
| Ranfft Uhren: ETA 2512-1 |
| Timedesign: ETA 2512 |
This movement was donated by Harald Hoeber. Thank you very much!