Until the OP checks in, from the pix those are Lewmar opening ports. Not inexpensive, and may have required some slight re-cutting of the opening.
It's a heck of a nice upgrade. (I have seen one O-34 with those installed.) Better yet, they are pretty near the Bruce King signature "look" for the large ports, IMHO.
I do not see these cataloged now, but maybe I'm not looking in the right part of the Lewmar site.
That looks like a nicely-equipped boat, with a rather rare 2 cylinder diesel option.
Found a reference to them on this vendor site:
Lewmar Opening Portlight - Aluminium with Grey Acrylic (171020 171021 171024 171026 171032 171034 171036 171038 171039 171040 171041 171042 171043 171044 171048 171050). Buy Lewmar Opening Portlight - Aluminium with Grey Acrylic & other boat accessories online from The Boat Warehouse.
www.theboatwarehouse.com.au