Omega Seamaster Tungsten automatic watch

Massive Omega Seamaster with tungsten case. Crystal and dial are in good condition for their age. Case is in good condition for its size, of course there are slight traces of age and use. Usually, the cases of this model are in pretty bad shape, because due to their size, they easily knock everywhere. Crown, leather strap and buckle are original. Service history is unknown, but the watch and its features work well. Date quick set works by pulling the crown to its furthest position and the watch is running approximately +- 10 seconds per day.