Tudor looks to the dark side this year with new black-on-black models that strike an alluring balance between modern technology and Old World glamour. Since Tudor Submariners were chosen by the French Navy for its divers in the 1960s and later by the US Navy for its underwater demolition team and Navy Seals, the brand has made a name in the nautical world. Tudor did not disappoint this year with new diving watches - the Hydronaut II Date and Chrono, and the Hydro 1200. One of the highlights of the Hydronaut II Date and Chrono models is the narrowing red line stretching from 3 o'clock to 12 o'clock on the watch's unidirectional rotatable bezel. The red line marks the critical 15 minutes needed for a diver's decompression stops when ascending at the end of a dive. Waterproof to a depth of 200 metres, the two models come with black rubber straps and dial colours ranging from classic black to ruthenium, silver-sun, white and blue. Those looking for a sporty addition to their watch collection will go for the Chrono model, with its sub-dials showing the minute totaliser at 3 o'clock, hour totaliser at 6 o'clock, small seconds at 9 o'clock and date at 4 o'clock. Divers looking to explore greater depths can reach up to 1,200 metres below sea level with the Tudor Hydro 1200. Gas can become trapped in the watch during diving, and the Hydro 1200 comes with a helium valve that releases the trapped gas during the diver's ascent. The watch comes with a unidirectional rotatable black bezel, which matches the black dial and black ceramic links on the steel bracelet. Like the Hydronaut II models, the model name and other functions on the watch are highlighted in red. The Tudor Grantour Date and Chrono models take on the same black and red colour scheme but with a more retro look that distinguishes them from the diving watches. The classic Grantour Date model keeps things simple with a plain dial showing the date at 3 o'clock. The retro numbers on the black lacquered steel bezel speak to the long tradition of GT racing, and the leather strap is punched with microperforations like those seen on sports car seat covers. The Grantour Chrono comes with the same retro-bezel design and a leather strap with six large perforations studded along the strap, meant to resemble the design of driving gloves. The watch contains design elements inspired by other parts of the racing world, such as the chronograph sub-dials emulating the dashboard dials in a racing saloon car. The minute totaliser dial is at 3 o'clock, the hour totaliser at 6 o'clock and small seconds dial at 9 o'clock, with the date display at 4 o'clock. Tudor goes vintage chic with its Glamour Date and Date-Day models. Both models feature clean lines and sleek contours, along with delicate feuille hands. The Date-Day shows the date at 3 o'clock and the day at 12 o'clock on a silver-sun dial, with a black lizard strap to complete the classic look. The Date model shows the date at 3 o'clock and the Tudor shield at 12 o'clock, with 10 diamonds placed at the other indexes. The black dial and matching black patent leather strap add to the overall vintage look.