If it's a true omega it is clearly a custom designer watch and have seen similar sell from 1500 USD, upwards to 10K.
Also the style now-a-days could sell as a Unisex. Nice piece from the onset.
PS.- Can't wait to tell my Wife...."Elvis lives"
I can't find a match in any catalog to the OP watch, but we can maybe make some generalizations from the period literature.
Catalogs from the mid-1960s mark the introduction of intricate gold bracelets such as the OP example, but only on ladies' watches. At the time men's dress watches were trending towards the use of a sedate gold mesh bracelet such as these from 1964:
By the early-1970s, dress watch bracelets were getting a little more artistic, such as this example from 1974:
By the late 1970s, diamonds appeared on ladies' watch cases as seen in this catalog page from 1977...
...and gold bracelets were in vogue...
...so one could infer the OP watch dates to the mid/late 1970s based on the style.