
The Rolex Submariner MilSub Ref. 5517
The Rolex “MilSub” Submariner Ref. 5517 is one of the most iconic and sought-after models in the world of horology. Known for its military connection, this timepiece was originally designed for military use, making it a rare collector’s item today. The term “MilSub” refers to a military-submariner model, a designation that has come to symbolize the durability and precision of Rolex watches in extreme conditions. These watches were specifically built to meet the requirements of the British Royal Navy, and the 5517 is one of the few references that became available to the public after its service.