Steel Omega Speedmaster Professional Moonphase 3576.50.00. Manual-winding chronograph caliber Omega 1866 movement. Water resistant to 100 meters. Transparent case back. Small seconds sub-dial, 30-minute recorder, 12-hour recorder and central chronograph hand. Fourth sub-dial boasts moonphase and date indicators. Steel bracelet with folding clasp. Box and papers dated November 2003.