This is a RARE vintage 1975 OMEGA f300 SPEEDSONIC chronograph known as the “lobster tail”. The bracelet is quite futuristic, with the ability to flex like the tail of a lobster, while fitting VERY comfortably on the wrist. The stainless steel case is 44mm. across and 14.5mm. think with a full length bracelet, all in STELLAR and unscathed condition. The movement is the caliber 1255 f300 electronic that keeps VERY accurate time. The azure blue dial, having black registers and black inner bezel is stunning! The square, steel pushers are MASSIVE. This rare OMEGA was only produced for one year, in 1975. You can search the world and discover this may be one of the only examples available.