Trying to identify a Daytona

[cooljazz1981]

Sorry I don't have a picture. I have run across a good opportunity to purchase a Daytona. The seller is trustworthy but isn't sure of it's authenticity herself. The things that are in question are as follows. The right sub dial has every other number from 1 to thirty one. The lower sub dial has every other number of 24hr time. Left sub dial has abbreviations for all seven days of the week. If anyone can tell me anything about it, it would be greatly appreciated.