Why did I say YES to REPAIR his WEDDING GIFT | watch repair and restoration

A friend of mine got a vintage Grand Seiko 45GS as a wedding present from his father in law. When it broke, his father-in-law was somewhat taken back he was no longer wearing it. He asked me to take a look at it. I haven't been repairing watches that long, and I had no idea what I got myself into. You're welcome to join me as I try to find out what's wrong, hopefully get to fix it, and save my friend from a big family embarrassment. The movement inside this watch is the 4522-8000, the 4522a with date complication to be exact. 0:00 introduction & problem 1:44 dismantling hands & dial 3:45 not just any watch 9:35 found the culprit 10:44 a tough disassembly 15:08 cleaning 15:47 replacement 17:03 assembly 19:00 a short history 28:56 moment of truth 29:40 micro-adjusting the timing 30:10 assembly of date-system 34:12 dial clean-up 35:55 polishing 37:18 wrap-up