I can't find the Mudra Band complication on my Apple Watch face

If you can't find the Mudra Band complication (watch face) on your Apple Watch, you either need to switch the watch face or customize the watch face.  

The Mudra Band complication's name is MUDRABAND. 

For more help, you can read the following guide:

https://support.apple.com/en-us/HT205536