Omega 210.30.42.20.10.001
Omega, Seamaster series, model: 210.30.42.20.10.001, automatic mechanical, men's watch, 8800 movement, green round dial, non-adjustable hairspring balance wheel, 55-hour power reserve, 42mm diameter, transparent back movement, 300m water resistant, green ceramic bezel decorated with white enamel diving scale.