What are they worth? (Zodiac Watches)

[YarisSi]

I've been given the job of converting some new/unboxed and in need of batteries Zodiac watches into cash for a charity. Can anyone give me an idea what they are worth?

I have found a few prices online but not sure if they are "sensible" prices?

Model Numbers are:

ZO1103 (00032)
ZO6002 (00005)
ZO6101 (00020)
The numbers in the brackets are also on the back and I thought they may be of some use.

Here are some pictures/prices I found:
http://cdiwatches.com/Ladies-Zodiac-Calame-Classiq...
http://www.papastore.com/index.cfm?GPID=-8&PrP...
http://cgi.ebay.ph/ws/eBayISAPI.dll?ViewItem&i...

Thank you,
Si