Value of omega deville?

It is really difficult to judge about the value of your Omega watch by the description you provided. Omega DeVille watches in gold, equipped with an automatic movement, are really expensive - their prices reach 3,000-4,000 US dollars. The best way to find the answer to your question is to contact an Omega expert and provide more information about it. You can try contacting Omega specialists via official website of the brand - they have Contact Us section - http://www.omegawatches.com/customer-service/contact-us