This is how Crash Watcher works:
Today, Bitcoin crashed more than 5% in 30 minutes.
Fortunately, Crash Watcher has detected the big crash quite soon right at the top, when Bitcoin was $6570 (at 0:48 AM GMT Oct 11, 2018). In just one minute, Crash Watcher sold all holding coins to USD. The temporary bottom of Bitcoin was 6256 USD.
For pictures and more details:
https://cwcgunbot.com/this-is-how-crash-watcher-works/