I had two Casio Ex 50's.  They were watch pedometers that Casio made probably 15 or 20 years ago.  Both had finally failed.  They were true pedometers, in that they actually recorded each foot-fall.  Until I found the Accelerator, I could not find a 'watch' that did that.  There are plenty of pedometers that you attach to your waist, but no watch pedometers that I could find.  Entering data is a little complex.  You need to know your stride length.  One of the easiest ways to measure this is to run through some water at your normal speed and continue on dry pavement.  Stop and measure the foot marks you left with your wet shoes, left toe to right toe.  This is your stride length.  Do this a few times and take the average.  This obviously varies with the speed you run, but for general jogging where you are pretty constant with your speed it works great.  I'm still not sure about a couple of things, but it does what I want.
Very reasonable price.