A keepsake lost in Madrid: any news would mean the world

I'm Alberto. I lost my late brother's pocket watch on Friday, somewhere between the high street and the bus stop. It's a small silver locket with a photograph inside. It isn't valuable to anyone else, but it's one of the last things I've of brother. I've retraced my steps twice and asked at the shops and the bus company. If you've found it, or you have a bin, a bench or a hedge you could check, I'd be grateful. A finder's thank-you is waiting. Please use the offer button here rather than sharing any numbers publicly. Thank you for sharing this and for keeping an eye out.