The bill of the universal meter is usually a paper bill, and what it looks like can be distinguished according to different types. /kloc-At the end of 0/9 and the beginning of the 20th century, the Voyager series watches issued by IWC were usually accompanied by a bill named "IWC Watch Certificate", which was usually rectangular, similar to a brochure, with a cover and internal page numbers, and printed in many languages. The certificate usually contains detailed information, such as model, manufacturing date, movement type, etc. , with IWC watch's international quality guarantee, indicating that the watch has passed IWC watch's strict quality inspection.

It is worth noting that the billing form and style of IWC watches may change with time, region and product type. Therefore, when purchasing or appraising IWC watches, it is necessary to carefully study the relevant bill information in order to determine the authenticity and value of the watch.

If you can't get the bill of IWC watch, you can consider judging the authenticity of the watch from other aspects, such as looking at the appearance, movement, hands, dial and other parts of the watch, or seeking the help of professional appraisal institutions or people.