Same with mine!!! almost grinding metal on metal sound. I figured that when I bought it from Jomashop the oil was dry or something... but since i bought it for so cheap, i was ok with it figuring that in few years i will send it back to Hamilton for maintenance and they will lube it up, etc
I read online that while you can wind the watch manually, it is not recommended as some people had their watches break even. I mean those were rare cases as all mechanical watches have slipping mechanism where their watch will stop winding when it reaches the max to prevent damage, but i guess if that mechanism does not slip, then said damage to occur?
So what I do is when I pick my my automatic watch that is dead. I set the time, swing the watch few times, put it on and it is good to go. At the end of the day, it might be +/- 2 seconds max, but it is normal.
I think the bolded bit is nonsense. There are some watches (seiko/orient) come to mind, that you just cannot wind manually. But a hamilton auto should be able to be wound manually without issue to the movement. Just give it 10 or 12 winds forward and get it going.