Omega Aquaterra Railmaster 2812.52.37. Automatic co-axial chronograph movement. Polished and brushed steel case 42.2mm diameter. Water resistant to 150 meters. Matte black dial with luminous hour markers and hands, printed white track minute markers. Tan croc strap with steel folding buckle. Box and Papers. Service papers dated November 2018.
Replacement cost £3,600