Just curious, how much worth these watches?

Could someone help me determine the value of these watches?

- Omega De Ville automatic monoblock.
- case-back is blank.
- has no second hand for some reason.

Sure, glad to help. The way it is done is to look for something similar, perhaps on ebay and check how much people were prepared to pay in the SOLD section. Then check places like hodinkee and hey presto! Your value is somewhere between the two

Good point, though it doesn't look to me like the kind of watch that people on the second hand market usually describe using a reference number! Especially given the proportions between the size of the case, crown and strap, (if you know what I mean!)

If he is using this phraseology, asking this question about this type of watch, OP might do better with a series of image searches on google, bing and lycos etc and pressing SHOW MORE until he finds one. Or asking an Omega dealer what the cost of a replacement would be?

Still, at least it isn't quartz!