Hi Pplater,
Interesting topic to make a tour of this wellknown function/display/complication.
When I started to take an interest in watches I didn't care about them at all.
Today, whether its a manual or an automatic watch, it a very usefull indication for me. And this assessment came while wearing them, from experience and hence from the need I had in getting this info.
Why? Because I don't have a regular daily activity from one day to another and even Auto movement could not wind up enough. I found to need to know what was the power left before the lack of power decreases the accuracy.
Thus I'm very happy when I have one.
To illustrate PR I selected:
- here are mine:
A very strong aesthetical addition to the dial for the DB25:




