Second day on the wrist with my new (to me) Omega F300 “hummer”, this time with the date set. This one shows all the signs of having been rode hard, and put away wet! Brass showing, corrosion in places, crystal needs replacing. Came to me missing four screws, three case clamps, humming but not running. Stripped and cleaned, screws and case clamps replaced, new cell, running fine! So gummed up I had difficulty removing one train wheel. Excellent runner!