Omega Seamaster Chronograph Watch (21.23.04.45.00.3001). Caliber 3330 automatic co-axial chronograph movement with central chronograph hand. Date window at 3 o`clock position. Small 30 minute counter at 3 o`clock, 12 hour counter at 6 o`clock position and 60 seconds counter at 9 o`clock position. Blue dial with index hour makers. Blue ceramic bezel stamped with Arabic numerals set on a 44mm stainless steel case. Helium-escape valve at 10 o`clock position. Sapphire crystal on top and solid case back. Water resistant to 300M. Stainless steel bracelet.