If you replace the battery, again, with another verified new battery, and if the watch still loses time, then it is possible that the watch mechanism needs cleaning or adjustment. I have not looked up the specifications for the movement for your model watch, so I do not know exact what is in it or where. There is usually a small lever in the mechanical part of the movement which can adjust the mechanical parts to run faster or slower.
Mcdevito75 here, Even a so called new battery could be weak, who knows how long it was in the store before being sold. Try another Battery from another store.
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