Hello everyone on Watchuseek, I apologize in advanced if this question is in the wrong category; I just joined today. I have a question about the NEW Hamilton Khaki Field Mechanical H69439931 watch with the H50 movement. I cant seem to find any information about this H50 movement other than it has an 80 hour power reserve, over the 42 hour reserve of the older ETA. My question is does this imply that once fully manually wound, the watch should last 80 hours without another wind? Thanks for any help regarding this.