From Sal’s video, showing a Berg control system on the bridge, it is likely (but not guaranteed) also a Berg CPP installed on this vessel.
This vessel being delivered in 1982 the machinery and equipment originally installed is likely to be of makes and types available on the market in 1980 at the latest.
I have not been able to find any info on the Berg CPPs in production at that time, but here is what Berg Propulsion AB is offering today:
The History of Berg Propulsion is very similar to that of another CPP producer at the time, A,M.Liaaen. (which was another likely candidate as CPP supplier at the time):
Source: Controllable Pitch Propellers (CPP)
PS> Liaaen’s propeller division is now part of Kongsberg Maritime. They still supply spare parts, even for older models.