TAG Heuer Watch Aquaracer Professional 300 Rubber WBP5110.FT6257. Dive into the depths of the ocean with the TAG Heuer Aquaracer Professional 300. Equipped with the high-end Calibre TH31-00 COSC-certified movement, this 42 mm timepiece, water-resistant to 300 metres, is your reliable partner for deep-sea adventures.