My Father's Seamaster

Hi all.
My Dad passed away last year and my Mother give me this Seamaster the other day.
He had another Omega also as he was, too, an Omega man! This model I was very fond of as I remember it well as a child.
He bought it in Rome, while on holiday there from New Zealand in 1978.
He didn't realise at the time that it only had the day in Italian, didn't bother him to much I don't think.
This bracelet is obviously not an Omega and probably had it fitted in Christchurch sometime in the '90s.
I plan to have the watch restored either by Omega, here in Sydney or by an independent watchmaker.
I've done a bit of research.
The watch model: 366.0845
Movement: 1022
Acrylic crystal
Bracelet required: 1286
(I think that info is correct?)
Any advice/ thoughts on where/ how I get this service done would be greatly appreciated. I live in Sydney. And don't know any watchmakers here.
The watch seems to be in perfect running order and keeping great time.
Cheers,
Hamish.