Regula Cuckoo Clock No. 859 (25-S) 1-Day ~ Needs Adjustment

Left pinecone only descended a few links in the chain in the multiple 12-hour rotations I made with the minute hand. Clock doesn't strike the correct number of times on the hour for several different hours. Good cosmetic condition. Bellows are good. Cuckoo bird pops out and goes back in. From what I understand, the "25" indicates it is a one-day clock that takes two weights. The "S" is a date code that should place it at 1984 OR 2004. Marked "Made in Germany" not "WEST" Germany. West Germany ended in 1990, so it's probably from 2004. Please note that I have a 3-business day handling time.