I just recently bought an invicta 8926c. I know the brand is not well liked, I bought it as an introduction to mechanical watches. Anyways I have been wearing the watch for about 3 days, and today I realized my watch was gaining a lot of seconds every day (about a minute every day). So I tested it today using time.gov. At 17:28 time.gov was 1 second slower than my watch, at 20:19 the same day my watch is about 7 seconds faster than time.gov. Is this normal? if not how is there a way to fix this without ruining the watch's water resistance?