This A. Lange & Söhne 18K Rose Gold Richard Lange Perpetual Calendar “Terraluna” Ref:180.032 is rated 9.8 out of 10. It comes with box and paper dated in 2018. This model was introduced in 2014. The dial is crafted from solid silver. The hands are made of pink gold. Hand wind movement with about 336 hours of power reserve. Functions: perpetual calendar, moon phase, leap year, month, big date, day, hour, minute, small second, power reserve indicator, day/night indicator.