That's an original Dual ULM cartridge, made for Dual by Ortofon. If you'd use a little mirror, you could probably see the exact type at the bottom of the generator capsule - but most likely it'll still be the stock ULM55E.
I was able to manage in taking off the stylus. Thank you for the info. The manual are written in european languages.
You may refer to the user manual of the 626 for that purpose - see for example there on Lulabu's archive:
https://www.hifi-archiv.info/Dual/626/ The 626 is pretty much the same thing as the 622, just with the start/stop lever replaced by front buttons and with an additional lift button.
Greetings from Munich!
Manfred / lini