Patek 3970 day date aligmnent

[Calatrava r]

So I am seeking out a 3970. What I am seeing is that many have the watches I have looked at have alignment issues with the day and date wheels. Sometimes one of the indicators is not vertically centered but in many watches the indicators are crooked and are slanting down towards the center. I have never seen this on the 2499s or 1518s. What are your thoughts? Is this how they came from the factory or is this a wear or wrong-time setting issue? If it was only a need for an overhaul I would doubt the indication would be in the box but crooked. But I really do not know. I do not want a costly repair to change out the underlying gears for the wheels. Any experts out there who are familiar with this?