Different from Lange’s previous moon-phase models with solid-gold lunar discs, this watch has a disc made of glass. It is first coated, and then 1,164 stars and moon are laser cut into it. Thanks to the luminous compound behind the lunar disc, the stars and moon shine when charged, giving the watch an insanely cool look in the metal.l. Once properly set, the moonphase only needs to be corrected by one day every 122.6 years.