These are quite far apart in price range. Worth to dig deeper into your options.
Welcome, you’re in the right place but you got to put in the hours of research, for your own sake 😉
The Longines is a fantastic value at just over $2K. The IWC is a great daily at ~$5K.
Probably depends on your budget, whether this is just 1 watch out of many, or you are just going for a one watch collection. For the price of the IWC, you could get 2 or maybe 3 watches to fill out other needs besides a daily wear. So, probably need more information to make an informed recommendation :D
IWC is the finer watch of the two, especially with their new in-house movements.
IWC is the way to go
Living in Florida and loving all watches