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Audemars Piguet 4100ST Royal Oak 4100ST Automatic Tropical Dial SS NICE (38524) | European Watch Co.
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1970's Audemars Piguet Royal Oak 36mm ref. 4100ST in Steel, Tropical Dial - Lunar Oyster - Buying and Selling
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Audemars Piguet Royal Oak Watches | ref 4100ST | 4100ST - Serviced By Audemars Piguet | The Watch Club
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AUDEMARS PIGUET | ROYAL OAK, ROYAL OAK, REF 4100ST STAINLESS STEEL WRISTWATCH WITH DATE AND BRACELET, CIRCA 1980 | Watches Online | 2020 | Sotheby's
![Bonhams : Audemars Piguet. A fine stainless steel automatic calendar bracelet watch with 'tropical' dial Royal Oak, Ref 4100ST, Circa 1980 Bonhams : Audemars Piguet. A fine stainless steel automatic calendar bracelet watch with 'tropical' dial Royal Oak, Ref 4100ST, Circa 1980](https://img1.bonhams.com/image?src=Images/live/2023-11/20/60149175-1-3.jpg)