If you don't want to use a domestic watch, you can consider the following methods to sell it:

1. Sell on the second-hand market: You can post an ad on the second-hand market to sell your watch to interested buyers. This method allows you to sell the watch at a lower price and allows you to sell the watch quickly, but it should be noted that you need to make sure that your watch is authentic and you need to provide sufficient supporting documents.

2. Sell on online auction sites: You can sell your watch on online auction sites like eBay, Paipai.com, Taobao, etc. This method allows you to sell the watch at a higher price and allows you to reach a wider group of buyers.

3. Sell in jewelry stores or watch stores: If your watches are high-end brands or have collection value, you can consider selling them to jewelry stores or watch stores. These merchants usually have professional appraisers and sales staff who can help you determine the value of the watch and provide you with better sales services.

4. Sell on social media: You can post ads on social media platforms to promote your watch to your friends and followers and seek their help and advice. This method allows you to market your watches at a lower cost and exposes you to more potential buyers.

Whichever method you choose, you need to make sure your watch is authentic and provide sufficient documentation. At the same time, you need to understand the price range of the watch market in order to determine a reasonable selling price.