A ref. 4100SA Royal Oak, sometimes known as the 'Royal Oak III', with an original dial signed Tiffany & Co above the Audemars Piguet signature. It is one of just a handful of Royal Oaks known to be signed by the American retailer prior to the shift toward selling solely Patek Philippe. The 4100 was created largely from demand in both Asia and Italy, where the 5402 'Jumbo' case was generally ... More @Wikipedia
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