Check Omega Watch, 15023000, the dial scale has the words diamond and DeVille, I don't know what the price is.

Omega Constellation Series 1502.30.00 Mechanical Men's Watch adopts the newly improved polished Cal. 1 120 self-winding mechanical movement based on ETA 2892-A2, and has passed the certification of the Observatory. Domestic genuine counters are priced at 20,400 yuan, which can generally be sold at a 10% discount 18360 yuan.

It's strange that you said this watch has the word Deville, referring to Omega's UFO series. I don't know if you have the wrong watch model. It's impossible. 1502.30.00 the mechanical men's watch is indeed a model of constellation series, with no diamonds on the scale and the words constellation on the dial. If you are not mistaken, you can only say that this is a high imitation counterfeit watch. You'd better provide a photo of the watch so as to distinguish the specific model of the watch.

I hope the answer will help you.