Decodyne Math Wall Clock – Unique Wall Clock – Each Hour Marked by a Simple Math Equation

Amazon.com Price: $24.95 (as of 01/10/2022 21:14 PST- Details)

Make sure this fits by entering your model number.
A UNIQUE WAY TO TRACK THE HOURS Instead of Roman numerals or traditional numbers, this clock has a different equation at each demarcation
PERFECTLY SIZED Clock measures 11-1/2 inches in diameter and is easy to spot from afar