# FAQ #### What sources of data are used to create an aggregate average daily price for watches? RWA Data Feeds by RWA World uses transactional historical price sets from over a dozen of on-chain tokenized watches such as Kettle.fi, Openchrono as well as off-chain like Chrono24, Watchype, Watchbase. #### How do the recorded prices get protected from the price manipulation? Incoming price data is checked against the curve of the prices recently recorded in the database (7 days to 30 days timeframe). Here are the recent examples from the logs detecting the price outliers in the luxury watches category: 2024-10-17 00:09:05.760 | WARNING | Filtered out 2 outlier listings for item 231 2024-10-11 00:12:02.921 | WARNING | USD price for the item 989 changed from 10611.5000 to 15557.2000 by 46.6070%. Setting back to the current price. The first check for the item nr 231 was for the Omega Speedmaster Moonwatch. The 2nd check was for the Hublot Big Bang Aero Black Magic 311. #### For what categories does RWA Data Feeds provide price feeds? Please see the list of the categories [here](https://orwacle.gitbook.io/orwacle/rwa-price-feed-categories). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://rwadatafeeds.gitbook.io/feeds/faq.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.