Omega Speedmaster Moonwatch Chronograph Watch (318.104.22.168.01.001). Caliber 1861 Manual Winding chronograph movement with central chronograph hand. Small 30 minute counter at 3 o`clock, small 12 hour counter at 6 o`clock and small seconds counter at 9 o`clock position. Black ceramic dial with index hour markers. Black ceramic bezel stamped with Tachymeter scale set on a 39.7mm stainless steel case. Sapphire crystal on top solid case back embossed with the original 1962 Seahorse. Water resistant to 50M. Brown leather strap and steel tang-type buckle. Numbered edition.