The bracelet is a Holzer ("Hecho en Mexico" engraved on the clasp). Exclusively Flightmasters (and Speedmasters) sold to/in Mexico were equipped with those bracelets.
Do you know the history of this watch?
Dial, hands and pushers have been replaced and case has been overhauled by Omega. I personally prefer Flightmasters as original as possible. But for someone who likes a vintage watch "like new" Bienne did definitely a great job.
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