Yes! Your Weret is water resistant up to 100 m (330 ft). The case is made with 316L stainless steel, a low-carbon steel with excellent corrosion resistance to sea-water.
It also incorporates 2-3 percent molybdenum, which increases corrosion resistance, compared to other stainless steels e.g. 304L. This steel quality is referred to as surgical grade stainless steel, or marine grade stainless steel.

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