I keep on telling myself, some day, some day...
My grail watch is to one day own a perpetual and to own a minute repeater. Seeing you with two grail watches just makes me brim with envy (just kidding) and motivates me to get my own. I will, some day.
Enjoy your two fabulous watches, I know I would. You probably already know this, but the moon phase on Lange watches have twice as many teeth as do most normal moon phase watches meaning they need to be adjusted only half as often. This watch is truly a perpetual, as it does not need adjustment (at least not until 2100).