yes it is a ST60+.
What you miss is the bearing package for the windvane
. Did you open the windtransducer? All staff inside available? I fear the mangetic part inside is also missing. If you able to read german, I'll send you a repair Manual, written by my self.
Now the bad News. You didn`t get it as a spare part from Raymarine
, only with the upper or lower Cup. The good thing is, both bearing packages are the same. But the magnetic knob is not included . The order number for the upper Cup, the bearing and O-Ring is A28168 and it cost 144€ in Germany