Wah 4 biz class tickets to Europe every year??!

So if spend 16k on watch with the Amex card, will get 320k points and this convert to KrisFlyer miles is 200k? I only use the 10x accelerator once to buy watch and can’t quite rem.
Update:
After using the calculator on the Amex website, spend $16,000 on watch at THG gets 100,000 MR points and this converts to 55,555 miles. And this is for the standard Platinum Card. For Platinum Charge card, it is 20x instead of 10x. This explains why the annual fee is so much higher for the Platinum Charge card compared to the standard platinum card.