Should I sell or repair broken Tag Heuer

[amphr1]

I have a Tag Heuer 02 skeleton 43mm watch. It's a real pretty watch. But it never kept time very well. It was always running too fast, like 15 seconds a day fast, so finally I decided I can't stand it and went looking for a local watch repair shop to regulate it. Unfortunately the only one available was in a bad part of town, but I went there anyway. The first impression was not so great. A gun shot rang out and the owner didn't seem to be bothered, as if this happens all the time. Anyway it sounded like it was probably several blocks away, so he took my watch and put it in the machine and confirmed it was too fast. He adjusted it and handed it back to me. I went home and now I realize it's 30 seconds a day too slow. I let it run for 2 days and it was a full minute slower. So alright I went back one more time. No fuss this time around and he offered to fix it at no charge. I had to get an oil change for my car and he said it'll take 45 minutes because there were 3 customers waiting. So I left the watch with him and do my other choirs. I came back and the watch seems good. I went home and waited about 4 hours and it was 1 second fast. So I put it away and this morning went to check how fast it's gone after about 18 hours, and it wasn't running. So I went to wind the watch, and nothing. No matter how much I wind the watch it won't start. I put it in a winder and it still won't start. So now it's broken.

Okay so what are my options? To tell you the truth, i've been thinking about replacing this watch with something more accurate for a while now. But now that it's broken, I can't just sell it as if the watch is working and that'll put a huge dent on the resale price.

Option 1: Send it to Tag and pay whatever they ask, probably $500, just my estimate, and maybe a month or two.
Option 2: Bring it back to the same place and demand he fix it, knowing he probably isn't competent enough to do so and I'll probably come home none the better
Option 3: Sell it online, like chron24, and lower the price and clearly state it's not working and needs to be fixed.

I'm interested in your thoughts