TAG Heuer Watch Aquaracer Calibre 5 WBD2111.BA0928. GO DEEP. Ever since we patented the first water resistant case in 1895, TAG Heuer watches have been braving the high seas and sending divers lower and lower into the depths of the ocean, going deeper and darker from 100 to 1000 m with the Aquagraph. The Aquaracers unique double security clasp and unidirectional turning bezel protect you so that you can take risks and count on the ultimate precision under pressure as you dive into life.