ISO 6425 is an international standard that spells out in great and unambiguous detail the criteria for what can be called a “diver’s watch”. Aside from the obvious water resistance requirement (100 meters, by the way), there are rules for legibility, salt water resistance and more. But the fact of the matter is, not many watches are even subjected to the testing required to earn the ISO seal of approval. So when Cartier, best known for its classic Tank and elegant Ballon Bleu watches, introduced its Calibre de Cartier Diver ($8,200) this year with full compliance with ISO 6425, the watch world took notice.
Time for a new dive watch standard
This post is presented by Cartier