Ulysse Nardin Marine Diver
Who doesn't fancy a bit of gold? This 44mm case of 18-carat gold is mounted on a rubber strap, doubling up as a timepiece for the office as well as the watery depths. Its water resistance of up to 300 metres is augmented by a screw-locked crown and case-back while a self-winding calibre stores up to 42 hours of power reserve. In relation to Ulysse Nardin's marine history, one finds aesthetics in the form of the anchor emblem, wave-like motifs on the dial and an engraving of a boat surrounded by the inscription 'Conquer the ocean' on the solid case-back.

Ulysse Nardin Marine Diver

Panerai Luminor Submersible 1950 Carbotech
Forging its own path in the field of material engineering, Officine Panerai releases carbotech — a carbon fibre composite. This first in the world of watchmaking offers a clear technical superiority on the case, rotating bezel and crown-protecting lever bridge. Advanced wizardry in the material forges results in polymers binding the carbon fibres together, producing the carbotech that is lighter than ceramic and titanium, and yet possesses greater resistance to external agents and corrosion. This 47mm piece is water resistant to 300 metres, and features the recognisable luminosity of Panerai on its hands, applied dots and Arabic numerals.

Panerai Luminor Submersible 1950 Carbotech

Blancpain Ocean Commitment Bathyscaphe Chronographe Flyback
For over 60 years, the Blancpain Fifty Fathoms diving watch has featured above and below the water's surface. This year, its constant calling to the world's seas is realised in a limited edition of 250 pieces to support ocean conservation and protection. Although the name of the timepiece may be a mouthful, its mission is an easy one; for every piece sold, a 1,000 donation will be made towards Blancpain's commitment to the oceans. Housed inside a grey ceramic case, this chronograph timepiece is built with sealed chronograph pushers, so you can make use of its stopwatch functions even at depths of 300 metres.

 

Blancpain Ocean Commitment Bathyscaphe Chronographe Flyback

Audemars Piguet Royal Oak Offshore Diver
It's quite rare to find a diving watch that features a transparent case-back. The reason for this is simply in the atmospheric pressures that might cause water to seep in. But if one were to examine the powerful construction of this particular timepiece's case-back, one can understand why it was safe and possible for sapphire crystal to be used. That same swagger is extended to the rubber-clad screw-locked crowns, thus allowing these pieces to reach depths of 300 metres untroubled by atmospheric pressure.

Audemars Piguet Royal Oak Offshore Diver