I agree with amanico.
Power Reserve display is only useful for hand wind movements and especially for long reserves.

The classic 8-day reserve 4-barrels stacked vertically and cross-linked is the Chopard LUC 1.98 from 2000.

The triple-certified LUC Tourbillon Chronometer with Qualite Fleurier and Geneva Seal needs a power reserve display.

The latest LUC 1.98-powered watch is for trendy young people.

One thing cool about long power reserve watches is the neat crank they give you to play with your watch on Sundays!

MTF