Aqua Racer was launched by TAG Heuer, who obtained a patent for a waterproof case in 1895, as a diver's watch. All models have a waterproof performance of 300m or more, and have a spec that can be used by professional divers, such as applying green and blue luminous paint to the hands, indexes and bezel. Bezel with six signature studs, which is the feature of this model, is designed not only for design but also for easy operation while wearing gloves. The Aqua Racer has a smart and simple specification for divers' watches where the volume tends to come out of the case size and thickness. Ladies' sizes are also substantial, and many sporty and luxury models are available.