Hello. I recently purchased an Atmos clock, the baby Atmos. It will run for 3 or 4 days then stop. Sometimes when it stops the minute hand will spin freely. If I reach in and manually wind the mainspring with my finger the clock will run again. It runs and keeps accurate time. But in a couple of days will stop again. I manually wound it a couple of times then decided to check the bellows. I pulled the bellows off it was dated 1956 and checked it's movement. Set it in the frig for a couple of minutes and measured then let it sit at room temp approx. 70F and measured. Got the numbers listed in one of the Atmos books. While off and the mainspring was unwound I pushed the back of the plate on the end of the large coiled spring. It only wound the mainspring a couple of times then seemed I had to pull a little on the coiled spring to wind. The mainspring seems kind of stiff or hard to wind?? It seems that the coil spring doesn't have enough strength to wind the mainspring? Or could it be the mainspring needs cleaned and oiled?? If the mainspring is wound the clock seems to run fine. The clock is in very nice condition for the age and I would really like to get it working. Any suggestions as to what to try? thanks Oh I also measured the distance of the coil spring it was approx. 48mm.