Watches and Wonders Geneva 2024: Montblanc adds the 0 Oxygen Deep 4810 to its Iced Sea series

After you've scaled the heights, where do you go? For Montblanc, they cast their sights below...
Published: 9 April 2024

After Montblanc launched its Iced Sea Collection in 2022 (y'know the ones with the glacier dials), the brand gives us the newest addition: the 0 Oxygen Deep 4810. That is a very specific number, you might say. But "4810" is a mainstay of the brand—that is the height in metres of Mont Blanc, the highest mountain in the Alps. For this venture, the 0 Oxygen Deep 4810 holds claim to being water-resistant at the depths of 4810 metres. (For context, this is almost half of the depth of the Mariana Trench at 10,909m.)

Given that it's able to withstand the depths, it makes sense that the 0 Oxygen Deep 4810 is housed in a titanium case and shielded screw-down crown.

Like the other Iced Sea timepieces, the dial of the 0 Oxygen Deep 4810 is inspired by the Mer de Glace, a valley glacier. According to the presser, the dial showcases an "interlocking network of crystals that have been frozen in time for millennia". Like the Iced Sea line, the dial's look is brought about via gratté-boisé—a tedious polishing effect that doesn't remove any of the material.

While the dial is a sight to behold, the caseback reveals a 3D-engraving of what you see under a sheet of ice. Created by a laser-generated oxidation that gives the caseback an otherworldly glimpse, a contrast of colour and texture.

If you're attempting to explore the ocean depths, illumination is a must. White Super-LumiNova acts as photoluminescence on the hands, indexes and a dot at 12 o'clock. Montblanc's COSC-certified automatic MB 29.29 movement, ticks away inside; with five days of power reserve. The Iced Sea 0 Oxygen Deep 4810 joins the ranks of Montblanc's “Zero Oxygen” timepieces that are made without any oxygen to ensure a more precise and longer performance; as well as the elimination of fogging.

Rounding up the watch is an interchangeable black rubber strap that's tapered in a V-shape and can be easily adjusted directly on the wrist.

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