Giving up isn't the end of the world, especially since it looks like you have a few other issues, one at least being that the reset lever is out of place- the train bridge will have to be removed to correct this. Here is the portion of the tech guide that talks about stem removal:
And the rest of the tech guide: http://www.citizenwatch.com/downloads/techguides/7300.pdf
Before disassembling any movement, I find it a good idea to study the tech guide entirely to make sure I am up to the task of successfully completing the repair.

And the rest of the tech guide: http://www.citizenwatch.com/downloads/techguides/7300.pdf
Before disassembling any movement, I find it a good idea to study the tech guide entirely to make sure I am up to the task of successfully completing the repair.