Hello
@Ikrimust and welcome to the forum! The case style and funky purple dial color suggest your watch dates to the 1970s. At that time, the Swiss watch manufacturers (such as Omega) were struggling with the new-fangled quartz watches from Japan so your watch, in some ways, represents that last of the old guard. Omegas from that time period had colored dials (such as red, green or blue) in an attempt to regain some mass-market appeal.
If you want to wear your watch, we recommend that you have the mechanical movement serviced by an independent watchmaker who is familiar with vintage watches. All of the moving bits in the movement need to be checked for wear and tear, lubricated and adjusted. The watchmaker can open up the case and tell you the reference number (on the inside caseback) and verify the movement type.
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