In Original Condition
Checked on all functions and works perfectly
Screw-in stainless steel case-back
Original Omega signed acrylic crystal
Original Omega signed steel crown
Original Omega signed caliber 1260 movement
The f300 Hz movements were developed jointly by Omega and ESA under license from Bulova. They were used by a number of manufacturers in the 1970’s. Omega suggested service intervals of 5-6 years, which shows these are a hardy movement that can still be found running strongly in many watches.
Tuning fork movements, although more accurate than mechanical movements, were quickly replaced by quartz movements that were cheaper to produce and seen as more accurate. The era of the tuning fork movement was therefore short lived and many will miss out on owning one of these outstanding timepieces.