Although this tuning fork movement was designated by Omega as a caliber 1260, the base movement is an ESA (Ebauches S.A) 9164. The ESA 9164 features a day and date. Caliber ESA 9162 (Omega caliber 1250) has a date only.
1260
Manufacturer ETA Caliber Number 1260 Movement Type Mechanical, manual-wind Vibrations Per Hour 18,000 bph Jewels 17 Power Reserve 53 hours...
Brand Omega Caliber Number 1250 Base Caliber ESA 9162 Movement Type Electronic Diameter 13”’ (29mm) Thickness 4.8mm Jewels 12 Tuning...