authorized VC dealer and see if they can help. I believe diamond-set watches like the one you are looking for may not be very popular models for men in North America and Europe.
Depending on where you are now, your local dealer may not have that particular model in stock. Are you close to any of the VC Boutiques? Since you are going back to China in about a week, I don't know if any dealer can get one to you in time, though you can ask.
Another option you might want to try is to return home by traveling through Hong Kong first, see if the large VC boutique in Tsim Sha Tsui, Kowloon might have the model you are looking for. (Hopefully you have a valid HK/Macau travel pass/"Tong Xing Zheng").
Best Regards, Dan
P.S. Welcome to the Lounge!