The OceanX Sharkmaster 1000 SMS1153 is a high quality watch. It pays tribute to diving watches of the present and the past, but does have key OceanX elements. Under the hood you will find an automatic Miyota 8315 movement. The glass is 4.1mm thick scratch resistant sapphire glass. The impressive 1000 meter water resistance of this watch is possible due to the helium valve, that you can see on the side of the case. The uni-directional 120 clicks bezel has a ceramic insert (which is very scratch resistant) and the characters have lume. The case and bracelet have a durable rose gold IP coated elements. All these qualities ensure to the Sharkmaster is able to handle nearly any situation.