TAG Heuer Accuracy

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I was just wondering what sort of daily discrepancy should be expected from my watch
After syncing with the speaking clock on Saturday morning, I've noticed that it's gained about 10 seconds over the subsequent three days.
Is this normal or does it need to go back for attention
Thoughts appreciated
It's a calibre 5 formula one
 
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This is excellent precision for that movement, you should be very happy with those numbers
 
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I'd be over the moon with that. My new calibre 5 Aquaracer gains 17 seconds per day!
 
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So 3 seconds a day? That’s excellent. If all my watches kept time that well I’d be happy.