Classicwatch Vintage Watches

I have a doxa pocket alarm clock. Or so it seems from the research I've done. I would like to know a approximate value on it if at all possible. On the back it says 'gold electroplated 20 microns SAD 49 001 31 275542' I believe the last number is 2 anyway. It is square. Has a fold out stand on the back that when combined with the wind and adjustment knobs becomes a stand. 810 is stamped on the inside of the stand and 915 on the inside of the front cover. I haven't removed the back as I am afraid of damaging the watch. I would say it is in near mint condition. I am unable to upload pics but if you go to www.vrapce.mk/ad/3697 you will see what it looks like. I have been unable to get any idea of it's value after many hours of digging. The watch on the website above is the only one like it I've seen. Maybe his evaluation of "extremely rare" is correct!! PLEASE HELP!! Thanks in advance for any info you can provide.

It won't be a lot, it's an electro plated case after all. It has the characteristics of a 1960s piece, not 1930s.