This could be lighting, because the top of the lug looks more yellow than the side of the lug as well. However, it would definitely be a good idea to get more photos so that you can be confident everything is ok. In my experience, the apparent color of gold depends a lot on ambient lighting. I would also want higher resolution photos of the dial. In focus.
Do you know the case size? Photo of the inside of the case-back?
Click to expand...