So the guy could renew the trademark and force Apple to pay him money to take over the trademark?
No, trademarks have to actually be used to be valid.
Or just release a product that uses the trademark (even if they only make and try to sell a few copies of said product.)
Yes, likely, although it would depend on the history of the trademark, whether it was every actually used in commerce, whether it was even filed (or acquired) in good faith. But...
Candied apples with the APPLE trademark, anyone?
No. Trademarks are awarded for specific categories of products. It would have to be a watch, or at least some sort of electronic wearable.
Yes, all my comments are based on knowledge of US law. But there are treaties harmonizing the laws between basically all Western countries, so the laws are very similar.
I read the original article a few days ago, and, frankly, it struck me as a bullshit article whipped out by someone with 0 knowledge or understanding, purely to get a "ZOMG Apple will have trouble selling Apple Watch in SWITZERLAND" headline for click bait.