Watches And Wonders 2025: Montblanc’s New 1858 Geosphere 0 Oxygen Mount Vinson Limited Edition Honors An Icy Adventure
Few feats in mountaineering are as legendary as Reinhold Messner’s conquest of the Seven Summits, the highest peaks on each continent. Among them, Antarctica’s Mount Vinson stands apart, a frozen titan rising from the planet’s most desolate wilderness. Now, Montblanc pays tribute to Messner’s 1986 ascent with a stunning new timepiece that captures the raw beauty and unforgiving challenge of the world’s southernmost peak: the 1858 Geosphere 0 Oxygen Mount Vinson Limited Edition is introduced by Montblanc at Watches and Wonders 2025 as a tribute to a remarkable expedition.

Limited to just 986 pieces, a nod to the year of Messner’s climb, this watch isn’t just a timekeeper but a wearable expedition, blending cutting-edge horology with the spirit of adventure.
A Dial That Mirrors Antarctica’s Frozen Majesty
The first thing that strikes you with the new 1858 Geosphere 0 Oxygen Mount Vinson Limited Edition is the glacier-blue and light grey dial, crafted using an intricate gratté-boisé technique. This painstaking process, requiring 30 steps and four times longer than a standard dial, creates a mesmerizing, almost hypnotic depth, mimicking the crevassed ice of Mount Vinson itself. The effect is so vivid, you can almost feel the Antarctic chill. Surrounding it is a light grey anodized aluminum bezel, its cardinal points glowing blue in the dark- essential for any explorer braving polar extremes.
Built For The Most Extreme Conditions
Montblanc’s Zero Oxygen technology ensures this watch thrives where others would falter. The 43.5mm titanium case is reinforced with a composite middle case made from quartz fibers, aluminized basalt and light blue resin. These materials are as rugged as the mountain it honors.
The entire case of this 1858 Geosphere 0 Oxygen Mount Vinson Limited Edition is devoid of oxygen, preventing fogging and corrosion even in the harshest environments. A luminous engraving of Mount Vinson’s silhouette glows on the side, while the caseback features a 3D laser-engraved depiction of the peak serving as a reminder of the heights this watch is built to conquer.

A Worldtimer For The Modern Explorer
Inside beats the Caliber MB 29.25, an automatic movement with Montblanc’s world time complication. Two rotating 3D globes (Northern and Southern Hemispheres) spin counterclockwise, displaying day and night zones at a glance.
As a subtle but brilliant touch, the seven summits from Messner’s list are marked on the Northern Hemisphere globe, along with Mont Blanc - tying the watch to mountaineering history. A date window at 3 o’clock and dual time subdial at 9 o’clock make it as practical as it is breathtaking.

A Strap Designed For Adventure And Style
For the first time in the 1858 collection, Montblanc swaps leather for a high-performance rubber strap, but not just any rubber. This one features a mountaineer’s rope motif, reinforcing the alpine spirit, while the underside boasts a mountainous texture for breathability and comfort. It’s also easily interchangeable, tapered for a sleek fit, and includes the signature 1858 stitching above the lugs, thus blending rugged utility with refined elegance.

A Watch As Bold As The Climb It Honors
The 1858 Geosphere 0 Oxygen Mount Vinson Limited Edition introduced by Montblanc at Watches and Wonders 2025 is a tribute to human endurance, a masterpiece of engineering and a call to adventure. With only 986 pieces available, this is a timepiece destined for collectors, adventurers, and those who dream of standing atop the world’s most formidable peaks.