+11 sec during activity is too much and unacceptable. Before going back, rest the watch every night in a different position. Both the sides and the back and ‘tummy’. Check the differences. If it’s between -4 and +6 sec then that’s ok and you can say that the watch specificially gains too much time with movement of the wrist. It’s a chronometer and that used to mean something.
If it gains more during resting in various positions, the movement has too be regulated. You get a 4 yr worldwide guarranty, so no problem there.
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