====== Omega 1120 ====== The **Omega 1120** is a mechanical movement with [[automatic]] winding, ball-bearing [[rotor]], [[hacking seconds]], power reserve 44 hours. It is based on the popular [[ETA 2892-A2]] calibre and was the predecessor of the [[Omega 2500]] with [[co-axial escapement]]. Used for example in the series [[Omega Seamaster|Seamaster]]. ===== Cal. 1128 ===== **Calibre 1128** adds a [[24 hour]] hand. ===== Cal. 2400 ===== **Calibre 2400** is a skeletonized version of Cal. 1120 with no date function. ===== Cal 2401 ===== **Calibre 2401** is a skeletonized version of Cal. 1120 with no date function in yellow gold. **Manufacturer:** * [[Omega]] **Description:** * [[Self-winding]] movement * [[Shock protection]] * [[Yoke winding system]] * [[Nivarox]]-1 [[balance spring]] * Etachron [[precision adjustment]] * [[COSC]] certified [[chronometer]] * Elaborate [[finishing]] **Functions:** * [[Central seconds]] * Rapid calendar advance * [[Hacking seconds]] **Data:** * 11½ [[ligne]]s * D ? mm, H ? mm * 23 [[jewels]] * 28,800 A/h * Power reserve 44h **Production period:** * ? {{tag>Movements Omega_calibres}}