The BN7020-09E is the world’s first light-operated diving watch suitable for saturation diving. The new flagship of the Promaster Marine collection uses a wide range of Citizen technologies, resulting in robustness and even greater water resistance.
A diver’s watch, which is to be suitable for 1000m saturation diving, must not only undergo the water resistance test, but also a test in which the diver’s watch remains 15 days in a pressure chamber containing helium and oxygen or 100% helium gas. It is then returned from the pressure chamber to the atmosphere outside the pressure chamber within 3 minutes and is exposed to 125 bar during this high-speed decompression. This requires the best materials and advanced technologies.
For the BN7020-09E the Super Titanium IP technology Duratect DLC & MRK was used to achieve a maximum of robustness and comfort.
The BN7020-09E is equipped with an Eco-Drive, which makes it independent of batteries.
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