Hi All Well after my dad kindly starting my collection at Christmas with a SMP300M it seems my now almost constant Omega talk (according to my wife) has rubbed off. He called me today to say our local AD rang to say he had something he may be interested in. I called round to see him after work and he showed me the pre-owned PO he's bought. I have to say its stunning, but I've a couple of questions. It was new in September 2008, does anyone know which version of the 2500 cal it is likely to have in it. I can't recall the ref but its a steel on steel black face, white numbers and the serial number starts 818XXXX. I guess it should be a 'C'? Secondly so he can check it out, the AD gave him a years warranty, what sort of accuracy should we be looking at? Thanks in advance Matt