The moon is a disc
moon phase
Under a specially shaped dial window, an approx. 10 mm moon disk rotates once around itself in 59 days. The moon can be found on it twice. Thus, the approx. 29.5-day lunation is displayed in realistic one-day increments. The moon is displayed very realistically by imitating the craters of the real thing, which is about 384,000 km away.