@christies_inc: An extremely rare and mesmerizing platinum mother-of-pearl wristwatch ⌚️ The visually stunning mother of pearl dial has a wonderful bluish tone and a moon phase with a 29 1⁄2 day lunar calendar. 🌙 The perpetual calendar reference 25686 shares characteristics of many of the earlier #AudemarsPiguet perpetual calendar models in not having a leap-year indication on the dial. #wristwatch #watch #watches #motherofpearl #royaloak #christieswatches