WATCH RUNNING TOO FAST BUT NOT THE SAME IN SAME INTERVALS

You are missing a fundamental understanding of how mechanical (non-battery type) watches run. A mechanical watch has an oscillating wheel called a balance wheel. Balance wheels are affected by gravity. When your watch is in different positions gravity acts on the balance differently giving different rates of accuracy. When we watchmakers regulate the timing of a watch we actually measure the rate in several of the 6 possible positions and then shoot for an average rate that is acceptable. Different watches have different acceptable average rates. Other things can affect your rate also such as the amount the mainspring is wound ie fully wound, half wound or barely wound. Also lubrication, wear, dirt, age. If your watch is keeping time (on your wrist) of plus or minus a few seconds a day it is most likely keeping good time for a mechanical watch. A battery or quartz watch will often keep time to within a half second or better and is unaffected by positions as it doesn't have a balance wheel. This is not a simple subject and books have been written about it. Hope this helps, Michael You are missing a fundamental understanding of how mechanical (non-battery type) watches run. A mechanical watch has an oscillating wheel called a balance wheel. Balance wheels are affected by gravity. When your watch is in different positions gravity acts on the balance differently giving different rates of accuracy. When we watchmakers regulate the timing of a watch we actually measure the rate in several of the 6 possible positions and then shoot for an average rate that is acceptable. Different watches have different acceptable average rates. Other things can affect your rate also such as the amount the mainspring is wound ie fully wound, half wound or barely wound. Also lubrication, wear, dirt, age. If your watch is keeping time (on your wrist) of plus or minus a few seconds a day it is most likely keeping good time for a mechanical watch. A battery or quartz watch will often keep time to within a half second or better and is unaffected by positions as it doesn't have a balance wheel. This is not a simple subject and books have been written about it. Hope this helps, Michael