Category 10,000m +

On January 23rd 1960 the “deep boat” Trieste made an historic descent to 10,916 meters. On that occasion it was accompanied by a Rolex watch. James Cameron, National Geographic explorer-in-residence on-board the Deepsea Challenger is preparing to go even deeper this time also accompanied by another Rolex watch, the newly released Rolex Deepsea Challenge…

Bell and Ross Hydromax 11,100m (36,500 feet) The Hydromax is equipped with some impressive technical features. Bell and Ross use a watch case completely filled with a special type of transparent silicone oil called Hydroil to protect the watch from the huge pressures. Since temperature fluctuations cause this oil to expand and compress, Bell…

Sinn UX Dive Watch Sinn UX 12,000 meters (39,600 feet) This deep dive watch vying for supremacy is the Sinn UX. This one, like the Bell and Ross Hydromax is a quartz driven oil filled watch. Sinn points out some of the advantages of using an oil filled case: “the watch is absolutely free…

Technomarine Abyss 12,000 meters (39,600 feet) The Technomarine Abyss uses silicone oil combined with a quartz movement. If you click on the image to enlarge it you will notice the small air bubble in the oil at the 3 o’clock position. The Abyss has a case made from stainless steel and uses a mineral…