Simple Regulation - Different Movements

[StanGMT]

I have used my 1675 GMT Master as my daily watch since I bought it new in 1967 - 49 years ago.

This vintage of GMT has a 1575 calibre movement and this can be regulated simply by resting the watch face-up at might to gain a couple of seconds or winder-up to lose a couple of seconds. By using this method of regulation the watch is always within 2-3 sec of right time and I only need to unscrew the crown to adjust the date at the end of months with less than 31 days.

In the past week I have become the proud owner of a 2009 Rolex Air King that has hardly been worn (it was owned by a now-deceased family member, so I know its history). The Air King has a 3130 calibre movement. It gains a couple of seconds a day but changing its night time 'resting' position doesn't seem to affect its rate. Is there a simple way of regulating this movement without having to unscrew the crown or will I need to manually adjust it as necessary?

Any information/advice will be much appreciated.

Stan.