Oops I did it again...

A JLC Master Thin with a guide price that was far to good to be true. I had to see this thing. So I go to the viewing to have a quick look at the watch in person. It seemed to run smoothly, the movement looked good through the case back. I grabbed a couple of pics to get a better look under magnification. And noticed some kind of corrosion between the lugs:



I had it in mind to flip it after the summer. But this is a hard pass, right? I'll ask @Archer I thinks. It's corrosion of some sort that's in the screw heads? "Dedalus05", says he, "that looks like dirt!". I go back, give it a nail test and sure enough it's grease and dirt. Thank you Archer!!! It wiped away with a tissue.

Anyway the low guide price saw a three bidders in the room and one on the phone. I saw them off and got it. Have I made a huge mistake?



It's a Bucherer Blue Edition JLC Master Control Ultra Thin. I've no idea what the going price is. I hope to hell not less than I paid.

I'm completely confused by the what appears to be corrosion between the lugs on the outside of the case back. Shouldn't happen to a steel watch of that age.

That was my thinking. But the guide price of €500 to €900 told me something must be off. So I went looking for something wrong. But like I say, it was just dirt.

Edit - Here is what it looks like after the most cursory attention with a tissue:

As, sorry, I missed that part. Makes sense.

Don't know the current value, but it looks like a nice watch.

Nice pick up, price is good for that watch. Unbelievable that the original owner(s) would have let that crud build up.

Glad I could help!