I suspect you're thinking of chronograph (with the extra dials that record time like a stopwatch).
A chronometer is just a tweaked version of a movement design (calibre) that runs within tighter time keeping tolerances.
Here's the Ranfft page for the 1000 series and you can see some are chronometer rated. Sometimes, this data is not completely accurate but, it's a good place to start:
http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Omega_1001
Your watch needs a service from the photos I can see and the rotor has been impacting the bridges by the looks of it.
Cheers, Chris
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