The utility model relates to the technical field of watches, and discloses a center pointer type calendar and large moon phase display mechanism, which comprises a watch movement base body and a
rotating disc meshed in the middle of the watch movement base body, and two circular luminous display assemblies are arranged on the surface of the
rotating disc. And four mounting holes are formed in the surface of the watch movement base body. According to the central pointer type calendar and large
lunar phase display mechanism, through the arrangement of the circular noctilucent display
assembly, the
rotating disc and the
lunar phase change observation window, when the central pointer type calendar and large
lunar phase display mechanism is used, the rotating disc on a watch rotates to drive
fluorite on the rotating disc to rotate along with the rotating disc, different moon shapes are formed through the lunar
phase change observation window and the
fluorite, and meanwhile the
fluorite can absorb
light energy in the
daytime; the luminous lunar phase lamp can continuously emit light for more than 12 hours in the dark, can be recycled infinitely, is free of radioactivity and harmless to a
human body, so that the dynamic change of the lunar phase is simulated, watching at night is facilitated, and the ornamental value and the artistic sense of the luminous lunar phase lamp are improved.