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Tropical Mk II Double-Red' Sea-Dweller, Ref. 1665 | Stainless steel wristwatch with date and helium escape valve | Circa 1971 | Fine Watches | 2022 | Sotheby's
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![Rare Rolex 5513 "Comex" Submariner with Helium Escape Valve c1971 | eBay](https://i.ebayimg.com/images/g/4R4AAOSwQtlj8hGs/s-l1200.webp "Rare Rolex 5513 "Comex" Submariner with Helium Escape Valve c1971 | eBay")
Rare Rolex 5513 "Comex" Submariner with Helium Escape Valve c1971 | eBay
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