Is a great clock, unfortunately my drawstring was too loose and I wanted to remove three members. Unfortunately I have not found any description in the manual for what I have written to the supplier. The answer came very quickly, but it was recommended to me to go to a watchmaker that would make me the little money or for free. I looked at the instructions on the link in YouTube - How to adjust expansion band - considered, the guy just needed a good minute !! With a little skill, a small screwdriver, needle nose tweezers or small needle nose pliers can do even that well. It took, however, a good 5 minutes!