I scouted a bit, and the best (in-store) was iStore, their prices were on par with the rest and they had local stock (George area)
Personally, I think the Watch SE (2nd Gen) is the best bang for your buck, obvious, they priced it so that you can experience the Apple watch world, without cutting to much on the luxuries the more expensive models offer
I'd say if you can find a Series 7 on special (it's the previous model) consider that over the SE, personally, i like the always-on display. iStore is selling them for just over R5k (old stock of course)