I have this old stop watch, it's been lying in my cabinet for years now. It's originally from my grandpas clock store he had about around 1950's or 60's. Can anyone give any price estimate for this? I'm asking because i don't collect watches and don't use it so i guess it would mean more to some collector. There is couple scratches in the class. It's this ref. 1611 here: http://lh4.ggpht.com/_EWDt_J4i-Q4/S7.../Heuer1916.jpg.