The quartz movement hidden under the dial is responsible for time precision. The case is made of stainless steel of high quality covered with a silver coating. A silver bracelet made of steel is easy to use and perfectly matches other elements of the watch. The green dial is protected against shocks and scratches by a mineral crystal. A water resistance of 10ATM means the watch is suitable for swimming and freediving. Bulova 98B359 is an authentic watch from an authorised dealer.