The watch or AppleCare+?

I think I need to explain further. I’m from the UK & as I will be in Korea & Japan next month, it will be an opportunity to make a substantial saving on the purchase of an Apple Watch. My current watch is a series 3 aluminium (no AppleCare) & I’ve managed to scratch the screen twice, hence I’d prefer to have AppleCare+ on my next watch, especially so if it’s the aluminium version.

If it’s not possible to do what I asked in my original question, I’d probably go for the stainless steel version with the more scratch resistant sapphire screen.