Mondaine Swiss Railways Evo Big Date A6273030361SBB is a functional and very impressive Gents watch. Case material is Black Ion-plated Steel and the White dial gives the watch that unique look. The features of the watch include (among others) a date function. This watch is market as water resistant. It means it can withstand slight splashes and rain, but is NOT to be immersed in water. The watch is shipped with an original box and a guarantee from the manufacturer.