In the proof graphic, it appears someone has superimposed an IWC watch face onto Hunter's arm. However, this doesn't seem to match the watch Hunter was wearing.
Another photo of Hunter from the same set shows that the watch he is wearing has the stopwatch/seconds counter on the left and right-hand side of the watch face:
Did you make this graphic, @ThePowerofPrayer? There appears to have been an edit to the original photo of Hunter which is inaccurate.
The watch face in the original photo of Hunter is not visible due to the glare of sunlight: https://nypost.com/wp-content/uploads/sites/2/2022/04/hunter-biden-laptop-39-2.jpg
In the proof graphic, it appears someone has superimposed an IWC watch face onto Hunter's arm. However, this doesn't seem to match the watch Hunter was wearing.
Another photo of Hunter from the same set shows that the watch he is wearing has the stopwatch/seconds counter on the left and right-hand side of the watch face:
https://nypost.com/wp-content/uploads/sites/2/2022/04/hunter-biden-laptop-38.jpg?quality=75&strip=all
However, the IWC Portugeiser Yacht Club Chronograph has the stopwatch/seconds counter on the top and bottom of the watch face.
It is not the same watch! Can we confirm for definite that it is even an IWC watch?
The first pic you linked to doesn’t look like a glare to me, it looks like it was photo edited for the shoot.
Could be edited, but seems more likely to be overexposure.