Tudor Submariner USN Issued 'SEAL Sub'Tudor has been hitting it out of the park these past few years with its modern line, and appreciation for its vintage models is at an all time high. Particularly desirable is the brand's Submariner collection, which was produced for decades alongside its sibling, the iconic Rolex Submariner. Tudor Subs feature the same cases, crowns, and build quality as their "Big Brother" Rolex models, but were fitted with off the shelf Swiss movements rather the in