Is this level of accuracy normal?

[Romeomikehotel]

I just picked up a 16713 from one of the sellers here on the forums but at his local shop. I previously picked up a 16622 from another seller that had to be sent back as it was off by close to 4 min/day.
So now I find myself checking my 16713 each morning to see if it’s gained or lost any time and since I’ve had it now for 6 days, its maybe gained one second over that time period. I expected accuracy from a Rolex but this is beyond my expectation. Is this normal?