Yes he definitely looks like a Swiss. They are a relatively new breed to the UK - I only know about them as when I got JoJo from a rescue, he came with Bumble who I then called 'that fluffy one' and was told he's a Swiss!
I absolutely love them, they are very laid back by nature much like a rex or teddy. Their hair can sometimes grow backwards - Bumbles does - if so please stroke them backwards or it hurts (and they bite your arm...). They can get hay seeds and such stuck in the hair as it is so wiry yet long, so need brushing/these pulling out VERY gently, but don't matt too much around their bums like other long/rough haired breeds can.
The hair also ideally needs trimming as it can grow VERY long - Pixie, my Swiss sow, is still a bubby (she's hmm 8 months now, wow that went quick!) and her hair grows very fast. Trim them using normal scissors and treat them like a hedge you want to shape, and you should get a nice finish! It will help them cope with our heat too as it isn't this hot in Switzerland that often (yes, they do come from Switzerland originally)
They are prone to dry skin so shouldn't be bathed much if at all. Getting a Swiss sow is flippin hard as there are so few, breeders hang onto them...I got lucky and found a breeder closing down to get Pixie from, as Bumble was so laid back all other piggies scared him senseless. Apparently she was 'too good to go to a pet home really' oh well tough, she lives here now.
They are the only breed I have learnt much about, simply because I love them to bits and would absolutely love another, but they rarely pop up in rescue as those pesky breeders either hang on to them or want too much money for them...sometimes you see boars as past 'stock' on Gumtree, but I'm not likely to buy one when there are piggies in rescue even if they aren't Swiss, I am not that shallow lol.