Stethoscope Watch

Has anyone used them? I hate using my watch so I usually use the nurse on a stick when I take vitals or the clock on the wall. One concern is that the clicking may go through the stethoscope tube. However, the only other one I found, which is digital, may be too small to fit on my cardiology III stethoscope tubing because it clips on. My classic II probably will fit it.

This is the one I am looking at:

http://www.allheart.com/product.aspx?p=ckslpwtch

This is the other one: http://www.medisave.net/pulsemate-stethoscope-watch-timer-1699.html

I like how the slip through doesn't clip and it looks like it is made of rubber so hopefully I can use alcohol or the wipes on it without drying it out.

I read an article about how someone was just kicked out of a nursing program because she didn't have a watch and messed up her vitals. Since we all need our stethoscopes, this will prevent an error like that happening in my case although I think all but the psych floors have clocks in them.