The Zipp Chack Karakuri Puzzle Box (UNSOLVED!)

The Zipp Chack Puzzle box by Yasuaki Kikuchi was crafted in 2018 and released to select Karakuri members. This one frankly has me a bit stumped. The mechanism (shaped like a traditional zipper) is very unique and the puzzle is well crafted. Measuring 125 x 82 x 54 mm. I find this box puzzling!
Can't wait to finally figure this one out!