The 5517 watches of V9 Breguet MARINE Navigation Series, the original works of MARINE chronometer, “The timepiece is a weapon for military strategists” refers to this 5517 watches of V9 Breguet Marine Navigation Series, the original works of marine chronometer, and “The timepiece is a weapon for military strategists” refers to this watch, a masterpiece in the horological field. The factory copied the original data in an all-round way, and 98% restored the shell literal, showing the original elegance and toughness. The imported 9015 was upgraded to the original 777A automatic mechanical movement, engraved with the independent number and the signature of Mr. Breguet. The diameter is 40mm, and the outer edge of the case is decorated with coin pattern. Sapphire scratch-resistant glass on both sides and screw-in waterproof crown. The measured waterproof depth is 100m. It is matched with a dial decorated with solar radiation pattern, equipped with Italian crocodile leather, and given a pair of original adhesive tape, which can be worn by one watch and two, bringing you original value-added experience at a fraction price.