Ok, remember it's my first time.... Be gentle and go slow... FOR STARTERS, I DO NOT have any actual parts. I'm just looking for knowledge. Let's say you have a mantle clock movement with, say, an escapement with 38-42 teeth and a short pendulum. IF you wanted to convert it to a longer pendulum, say maybe 1 meter, could you just replace the existing escapement with one with fewer teeth and and get it to keep time? I think this would NOT work but can't wrap my head around the concepts involved. My sticking point seems to be that the gearing appears to require that the escapement rotate X number of times per minute. If the number of teeth are reduced to the point it rotates 1 time per minute with a seconds beat pendulum length, the gearing is off for correct time keeping. So, this means either the gearing would have to be changed along with the escapement (more pinon leaves/teeth) OR the escapement would have to have even fewer teeth. (Say 28 rather than 30.) Since existing depthing and tooth profiles prevent pinion tooth count changes, the only viable way to make this work is by using an escapement with fewer than 30 teeth. The other alternative is that regardless of the number of teeth on the escapement, an escapement ALWAYS ALWAYS ALWAYS only rotates 1x per minute. Which makes no sense because there are lots of different gear tooth counts in different movements. However, they all add up to 3600 at some point regardless of the beat frequency. So, where am I making my conceptual mistake?