The Seiko caliber 2906A is a Japanese-made automatic movement commonly used in ladies Seiko watches. It features 17 jewels and operates at a hi-beat rate of 28,800 vph. The movement encompasses various functions, including automatic winding, a day and date display, a sweep seconds hand, and standard timekeeping components such as hours, minutes, and a central second hand. The day and date indicators are positioned at 3 o'clock, with a bi-lingual day option.