Current PROMASTER is not a diver's watch,
It is equipped with 20 ATM water resistant, most of which has a function with impact resistance. Even if you continue to use it in a harsh environment, keep keeping time accurately at the arm of adventurers. As a professional sports watch, The fundamental performance of PROMASTER, which can satisfy this very important criterion, Depending on the history of the challenge of Citizen's watch development that has been accumulated over 100 years it is no exaggeration to say that it was realized.