OM30 Omega Seamaster F300 Hz. Watch measures a decent 38mm and is made from steel. Electronic Omega movement caliber 1250. Sapphire crystal on the front and a closed case back. Water resistant. Functions are hours, minutes, sweep seconds and date. This watch is fitted with the original steel bracelet with integrated folding clasp. Watch only no box or papers. The watch has been checked by our Omega certified watchmaker. Very rare to find this watch model with the blue dial in this 38mm round case!