Omega Constellation Chronometer Electronic F300 Hz Quick Set Date Cal.1250 Vintage Special Edition Swiss Made 1970 - Etsy
Omega] Constellation f300Hz from ~1972 : r/Watches
Omega Steel Constellation Chronometer f300 Tuning Fork Watch & Bracelet | Unwind In Time
Omega Constellation F300 Electronic with Day and Date c.1970s - Model – Vintage Watch Specialist
Sold at Auction: Vintage Omega Constellation Electronic F300Hz Chronometer Wrist Watch. Quartz movement. Serial number 3421749, circa 1972. Stainless steel case with no band. 37mm case with silver dial and luminous markers.