Royal Oak Perpetual Calendar Ultra-Thin 26595BC
Condition Notes
Cal. 5138 ultra-thin perpetual calendar manufacture — week, date, month, leap year, and astronomical moonphase at 4.3mm movement thickness. 18k white gold case and bracelet with light hairlines only. Blue Grande Tapisserie dial flawless. Service paperwork from AP Le Locle dated 2024. Original box, papers, AP extract from archives.
Cal. 5138 ultra-thin perpetual calendar in 18k white gold — Audemars Piguet's flagship grand complication at 4.3mm movement thickness. Week, date, month, leap year, and astronomical moonphase. AP Le Locle service 2024; AP extract from archives included. 12-month comp average sits at $1.32M; white-gold variant commands premium over rose-gold references.
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