2. On the homepage of Omega official website, find the "service" option, click it to see a drop-down menu, and select "after-sales service".

3. On the "After-sales Service" page, find "Query Your Watch" and click Enter.

4. On the "Query Your Watch" page, enter the eight-digit serial number of the watch, and then click the "Submit" button.

5. After submitting the eight-digit serial number, Omega official website will automatically query the information of the watch and return the query result.