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Rare Rolex 5513 "Comex" Submariner with Helium Escape Valve c1971 | eBay
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![Rolex] Helium escape valve on a watch on a wrist in the woods. : r/Watches](https://i.redd.it/f6nf1ggz60t41.jpg "Rolex] Helium escape valve on a watch on a wrist in the woods. : r/Watches")
Rolex] Helium escape valve on a watch on a wrist in the woods. : r/Watches
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ROLEX - Helium escape valve opens when the difference in pressure between the inside and outside of the watch reaches 3 to 5 bars, allowing helium to escape, thereby protecting the watch. #
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ROLEX | SEA-DWELLER GREAT WHITE, REFERENCE 1665, STAINLESS STEEL WRISTWATCH WITH HELIUM ESCAPE VALVE DATE AND BRACELET, CIRCA 1978 | Watches Online | Watches | Sotheby's
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The Helium Escape Valve - Everything You Need to Know | Bob's Watches
.jpg?mode=max "Rolex. A Rare Stainless Steel Automatic Wristwatch with Helium Escape Valve, Center Seconds and Bracelet")