Gift ideas for the in-laws

Hi all,

Firstly, I would like to thank all those that helped me prepare for my trip to Karachi recently. I am home in one piece :)

I am now in the process of considering wedding gifts for my fiance and in laws. I would appreciate some suggestions on what to gift my mother-in-law, father-in-law, brother-in-law, and sister-in-law, etc. What is the norm?

I am also looking to gift my fiance a luxury watch, any suggestions on how much to spend? (GBP)

Thanks in advance :)