The Omega 395.877 watch movement is a Swiss Made quartz movement with a diameter of 28.00 mm and a height of 4.40 mm. It has a battery life of 54 months and features 13 jewels for the gilt Swiss parts and 6 jewels for the nickel components. The movement supports a variety of functions including hours, minutes, central chronograph seconds, small seconds at 3:00, a 12-hour counter at 6:00, a 30-minute counter at 9:00, and a date display at 4:00.