Style
Style alone doesn't determine a vintage watch's value. The inner mechanism's working also determine how valuable and stylish a watch is in the wearer's eyes. Before purchasing a vintage watch, it's important to know whether you want, for example, a manual watch or an automatic watch.
Source
Where you purchase your vintage watch is an important decision and can affect many parts of the purchasing process. Buying from a local auction, for example, typically means you can get your vintage watch for a good price. The downside is you are not guaranteed the item of choice.
If you are looking to purchase your vintage watch online, it is important to choose a verified source. Some sellers may be offering counterfeit watches.
Cost
Your budget will be determined by your preference in watches. If you choose a famous vintage watch, such as a Wittnauer Futurama 1000, it may cost more than $1,500. Other watches, depending on style and condition, may cost much more or less.