The Seiko 5P31-600A is a ladies' movement that features a manual winding mechanism, a time-only display with hour and minute hands, a single barrel with a power reserve of approximately 40 hours, and a frequency of 18,000 vibrations per hour. It has a diameter of approximately 15.2 lignes (35mm) and a height of around 3.8mm. The movement comprises 19 jewels and has a total of 97 components. It is designed for durability and accuracy in timekeeping.