My 2 cents. I have a Rollie SE that I have had to open a few times to clean/lube the shutter/timer mechanism. I bought the camera new in the early 80's, but I have never worked with the meter. That said, I think this is a nice time to readjust the meter circuit for newer batteries. I use three - 357 cells in series, with a washer in the middle for power. The LEDs are a bit dimmer, but the meter seems close enough for B&W. I would use a good meter and a gray card to take a sample setting using a bright light, such as outside in the sun, and adjust the disc until the camera agrees. I would then move it to a dim location and repeat the experiment. If there is a difference, adjust for the middle. What ever you do, please post your results. I would like to get my meter more accurate too.
Wayne