The Eterna 1324U is a mechanical watch movement with an automatic chronograph function, featuring a 60-second, 60-minute, and 12-hour counter. The movement also includes a sub-second function, a quickset date, and a 24-hour display. It is equipped with an adjustable stud holder, providing precision in timekeeping, and features chronograph capabilities. Additionally, the movement incorporates Incabloc shock protection, ensuring durability and reliable performance. The Eterna 1324U movement was utilized during the period from 1970 onwards.