Omega , Seamaster professional chronometer. ref. 178.0504. Mechanical movement with automatic winding. Caliber 1154. Omega bracelet of steel circumference app. 20 cm. Ø 41 mm. 1985., Serviced in 2021. Accompanied by Etui and one extra link., Minor wear due to age and use. The watch works, but we do not guarantee for the functionality.