Bob's Watches is definitely an unbiased watch seller and isn't sponsored by, linked to and/or affiliated with Rolex S.A., Rolex USA, or any other manufacturer listed on its Site. Rolex initial used a water-resistant (“water-proof,” in its individual early terminology) watch circumstance inside the 1920s, which it dubbed the “Oyster.” https://aandewatches.com/product-category/rolex-sports/submariner/