For the past several years, Montblanc has built its watchmaking identity along two distinct lines: one shaped by contemporary sports watches and outdoor instrumentation, the other by the more classical and historically inflected language that flows from its Minerva legacy. The tension between those worlds have often dictated the brand’s output. For 2026, however, this feels less pronounced with Montblanc’s novelties presenting a sense of consolidation, tightening the focus around the collections and technical signatures that now feel most recognizably its own.
At the center of that picture is the new Iced Sea Automatic Date 0 Oxygen, a flagship core collection and the clearest expression of Montblanc’s current direction. Around it is a broader 0 Oxygen rollout spanning diving and exploration, while the latest Star Legacy models preserve the brand’s more classic offerings.
Montblanc Iced Sea Automatic Date 0 Oxygen
Montblanc’s Iced Sea Automatic Date 0 Oxygen features a 41mm distressed steel case with 300 meters of water resistance.
The gray sfumato glacier-pattern dial, whose textured base is created using a gratté-boisé technique requiring more than 30 steps and around four times the work of a standard dial.
The Iced Sea Automatic Date 0 Oxygen is not the most mechanically ambitious watch in the new lineup, but it is the one that best captures what Montblanc is building today: a recognizable, contemporary sports watch with a distinct design language and a technical signature of its own. Housed in a 41mm distressed steel case with 300 meters of water resistance, the watch takes its character not only from its specifications, but also from the amount of work invested in its surfaces.
The stainless steel case and bracelet are first treated with a black coating, then distressed through a process of washing and brushing with quartzite sourced from the Mont Blanc massif, giving the metal a darker, weathered finish that feels more elemental than decorative. That same attention carries through to the gray sfumato glacier-pattern dial, whose textured base is created using a gratté-boisé technique requiring more than 30 steps and around four times the work of a standard dial, resulting in a layered surface that evokes the depth and crystalline structure of glacial ice. Framing it is a black ceramic bezel with a laser-lowered section from 0 to 15 minutes, adding a distinct texture to the most critical part of the dive scale while reinforcing the watch’s instrument-like feel.
By removing oxygen from the case and replacing it with nitrogen before sealing, it reduces the risk of condensation when the watch is subjected to sharp fluctuations in temperature and atmospheric pressure.
Power comes from the MB 24.17, an automatic caliber based on the Sellita SW200, with a 38-hour power reserve. It’s a straightforward and robust proposition rather than a category disruptor. But as a product statement, it feels coherent and specific among the new releases.
It reinforces 0 Oxygen as Montblanc’s clearest modern watchmaking signature. By removing oxygen from the case and replacing it with nitrogen before sealing, it reduces the risk of condensation when the watch is subjected to sharp fluctuations in temperature and atmospheric pressure. That claim has now moved well beyond a one-off talking point, as it is even supported by dedicated upgrade services for owners of previous Iced Sea and Geosphere models.
Tech Specs
Iced Sea Automatic Date 0 Oxygen
Movement Self-winding Caliber MB 24.17 (Sellita SW200 base); 38-hour power reserve
Functions Hours, minutes, central seconds; date
Case 41mm × 12.9mm; distressed steel with 0 oxygen; unidirectional steel bezel with black ceramic insert, featuring Super-LumiNova with blue emission on the dot, laser-lowered from 0–15 minutes; water resistant to 300m
Dial Gray sfumato glacier pattern; rhodium-coated Arabic numerals with white Super-LumiNova coating
Strap Interchangeable distressed steel bracelet with fine adjustment
Price EUR 5,300
Montblanc Iced Sea Automatic Date 0 Oxygen Limited Edition 300 and Iced Sea Automatic Date 0 Oxygen Limited Edition 700
Montblanc Iced Sea Automatic Date 0 Oxygen Limited Edition 300, issued in 300 pieces.
The wider Iced Sea rollout also includes a more atmospheric variation on the theme in the form of the Iced Sea Automatic Date 0 Oxygen Limited Edition 300, issued in 300 pieces. Presented in an existing 38mm format, it looks to the colors glaciers can reflect at dawn and dusk during the warmer seasons, translating that mood into a coral glacier-pattern dial created using Montblanc’s gratté-boisé technique. The effect continues through the dual-color aluminum bezel insert, which pairs coral and red, while the watch retains the same underlying proposition of 300 meters of water resistance, the MB 24.17 automatic caliber, ISO 6425 diving-watch certification and a case sealed with zero oxygen.
Montblanc Iced Sea Automatic Date 0 Oxygen Limited Edition 700, limited to 700 pieces.
A more conceptually interesting take on the Iced Sea comes in the form of the Iced Sea Automatic Date 0 Oxygen Limited Edition 700, limited to 700 pieces. Drawing on the geology of the Mer de Glace, Montblanc builds the dial around shavings of subfossil wood sourced from the glacier’s moraine, material preserved over centuries as the glacier formed, shifted and receded. These fragments are carefully arranged across the dial before being sealed beneath a transparent resin layer, whose surface is then given a frozen finish to evoke the striated crystalline texture of ice. The result is a dial that feels especially layered, both visually and narratively, framed by a brown ceramic bezel. Underneath, it remains mechanically consistent with the core Iced Sea proposition, again using the MB 24.17 with 38 hours of power reserve.
Tech Specs
Iced Sea Automatic Date 0 Oxygen Limited Edition 300
Movement Self-winding Caliber MB 24.17 (Sellita SW200 base); 38-hour power reserve
Functions Hours, minutes, central seconds; date
Case 38mm × 12.3mm; stainless steel with 0 oxygen; unidirectional steel bezel with bi-colored coral anodized aluminum insert, featuring Super-LumiNova with blue emission on the dot; water resistant to 300m
Dial Coral glacier pattern; rhodium-coated Arabic numerals with white Super-LumiNova coating
Strap Interchangeable stainless steel bracelet with double folding clasp and fine adjustment; additional coral red rubber
Price EUR 4,500
Availability Limited edition of 300 pieces
Iced Sea Automatic Date 0 Oxygen Limited Edition 700
Movement Self-winding Caliber MB 24.17 (Sellita SW200 base); 38-hour power reserve
Functions Hours, minutes, central seconds; date
Case 41mm × 12.9mm; stainless steel with 0 oxygen; unidirectional steel bezel with brown ceramic insert, featuring Super-LumiNova with blue emission on the dot, laser-lowered from 0–15 minutes; water resistant to 300m
Dial Subfossil wood from the Mer de Glace encapsulated in “frozen” resin; rhodium-coated Arabic numerals with white Super-LumiNova coating
Strap Interchangeable stainless steel bracelet with fine adjustment
Price EUR 5,900
Availability Limited edition of 700 pieces
Montblanc 1858 Small Second 0 Oxygen and 1858 Geosphere 0 Oxygen Mount Elbrouz Limited Edition 829
The 1858 Small Seconds 0 Oxygen marks the first time the compact 38mm specification has been brought to the Small Seconds model.
Within the 1858 lineup, the notable developments include the arrival of the 1858 Small Seconds 0 Oxygen in a compact 38mm case. While 0 Oxygen is already familiar within the broader 1858 collection, this marks the first time the specification has been brought to the Small Seconds model, giving one of Montblanc’s more classically proportioned field-watch expressions with its signature technical edge. The watch retains the collection’s vintage expedition look, from cathedral hands and a black lacquered dial to the railroad minute track and fixed bezel with a black ceramic insert marked by luminescent cardinal points. Inside is the automatic MB 24.16 with a 38-hour power reserve, while a steel bracelet and blue-black saffiano calf leather strap offer two slightly different forms of wear.
Its 43.5mm case pairs titanium with a proprietary composite middle case incorporating volcanic ash, aluminized basalt fibers, calcium carbonate and a bio-sourced resin, creating a finish that evokes the snow, ice and volcanic terrain of Mount Elbrouz.
The 1858 Geosphere 0 Oxygen Mount Elbrouz Limited Edition 829 is the most fully developed expression of Montblanc’s explorer narrative in this year’s lineup. Limited to 829 pieces, the number refers to the year 1829, when the higher of Mount Elbrouz’s twin peaks was first reached, and places the watch within the brand’s ongoing Seven Summits storyline. Since 2018, the Geosphere has served as Montblanc’s vehicle for watches tied to altitude, endurance and global exploration, with the Seven Summits offering an especially fitting framework. After the Mount Vinson edition of 2025, the focus now shifts to Europe’s highest mountain, reinforcing the collection’s mountaineering identity.
The watch itself carries that theme through both construction and complication. Its 43.5mm case pairs titanium with a proprietary composite middle case incorporating volcanic ash, aluminized basalt fibers, calcium carbonate and a bio-sourced resin, creating a finish that evokes the snow, ice and volcanic terrain of Mount Elbrouz. A zero-oxygen case underscores the high-altitude positioning, while the dial continues the alpine mood with a white-and-brown sfumato treatment over a glacier-pattern base. Power comes from the automatic MB 29.25, which drives Montblanc’s Geosphere world-time display with its twin rotating hemispheres, 24-hour indication, second time zone and date.
Tech Specs
1858 Small Second 0 Oxygen
Movement Self-winding Caliber MB 24.16; 38-hour power reserve
Functions Hours, minutes, small seconds; date
Case 38mm × 11.7mm; stainless steel with 0 oxygen; fixed bezel with black ceramic insert and white luminescent cardinal points with blue emission; water resistant to 100m
Dial Black lacquered; indexes coated with white Super-LumiNova
Strap Interchangeable stainless steel bracelet with fine adjustment; additional black-and-blue saffiano calf leather with stainless steel double folding clasp
Price EUR 4,000
1858 Geosphere 0 Oxygen Mount Elbrouz Limited Edition 829
Movement Self-winding Caliber MB 29.25; 42-hour power reserve
Functions Hours, minutes; second time zone; world time with rotating Northern and Southern Hemisphere globes, 24-hour and day/night indicators; date
Case 43.5mm × 13mm; titanium with composite middle containing captured CO2 and volcanic ash; bi-directional titanium bezel with light gray anodized aluminum insert and luminescent cardinal points with orange emission; water resistant to 100m
Dial White-brown sfumato glacier pattern; rhodium-coated luminescent Arabic numerals and hemisphere globes
Strap Light brown interchangeable rubber with rope pattern and double folding clasp; additional ivory rubber
Price EUR 10,100
Availability Limited edition of 829 pieces
Montblanc Star Legacy Signatures
The Montblanc Star Legacy Moonphase 42mm pairs its anthracite dial with a moonphase and pointer-date display at 6 o’clock.
Set against the outdoors-oriented group are the new Star Legacy models, which function less as the center of gravity than as a reminder that Montblanc still wants room for a more classical watchmaking expression. Following the introduction in 2025 of the anthracite-colored guilloché dial within the line, the brand now extends that treatment to three additional complications: a 36mm Small Second, a 42mm Moonphase and a 42mm Chronograph. All three feature the exploding-star guilloché motif based on the Montblanc emblem, housed in polished pebble-shaped steel cases with stepped lugs and onion crowns. They’re also each fitted with a sapphire crystal caseback revealing the movement within, including an oscillating weight decorated with Côte de Genève and the Montblanc emblem.
The Montblanc Star Legacy Small Second 36mm offers the most jewelry-inflected expression of the trio, with its running seconds display at 6 o’clock framed by 30 diamonds.
The Montblanc Star Legacy Chronograph 42mm adopts a balanced two-register layout with running seconds at 9 o’clock and a 30-minute counter at 3.
The Moonphase 42mm pairs its anthracite dial with a moonphase and pointer-date display at 6 o’clock, while the Chronograph 42mm adopts a balanced two-register layout with running seconds at 9 o’clock and a 30-minute counter at 3. The Small Second 36mm, meanwhile, offers the most jewelry-inflected expression of the trio, with its running seconds display at 6 o’clock framed by 30 diamonds. Power comes from the MB 24.31 in the Moonphase with 42 hours of reserve, the MB 25.13 in the Chronograph with 48 hours, and the MB 24.16 in the Small Second with 38 hours.
Tech Specs
Star Legacy Moonphase 42mm
Movement Self-winding Caliber MB 24.31; 42-hour power reserve
Functions Hours, minutes, seconds; moonphase; pointer date
Case 42mm × 11.38mm; polished stainless steel; water resistant to 50m
Dial Anthracite sfumato with exploding-star guilloché, blue moonphase display and pointer date at 6 o’clock; rhodium-coated Roman numerals
Strap Anthracite calf leather with vertical sfumato effect; stainless steel pin buckle
Price EUR 5,200
Star Legacy Chronograph 42mm
Movement Self-winding Caliber MB 25.13; 48-hour power reserve
Functions Hours, minutes, small seconds; chronograph; date
Case 42mm × 14.29mm; polished stainless steel; water resistant to 50m
Dial Anthracite sfumato with exploding-star guilloché and Montblanc emblem in the center; rhodium-coated Roman numerals
Strap Anthracite calf leather with vertical sfumato effect; stainless steel pin buckle
Price EUR 5,700
Star Legacy Small Second 36mm
Movement Self-winding Caliber MB 24.16; 38-hour power reserve
Functions Hours, minutes, small seconds
Case 36mm × 10.75mm; polished stainless steel; water resistant to 30m
Dial Anthracite sfumato with exploding-star guilloché, and small seconds counter set with 30 diamonds; rhodium-coated Arabic numerals
Strap Black calf leather; stainless steel pin buckle
Price EUR 4,300
Montblanc Star Legacy Nicolas Rieussec Chronograph Limited Edition 821
If there is one watch in the launch that speaks most directly to a more serious horological audience, it is the Star Legacy Nicolas Rieussec Chronograph Limited Edition 821, issued in 821 pieces in reference to the year Nicolas Rieussec first tested his inking chronograph at the horse races of the Champ-de-Mars in Paris. The watch takes that 1821 invention as both its historical and visual starting point: its rotating domed chronograph disks and horizontal bridge recreate the layout of Rieussec’s original instrument, while the beige sfumato dial incorporates a horse-racing scene inspired by 19th-century Paris.
The Montblanc Star Legacy Nicolas Rieussec Chronograph Limited Edition 821, issued in 821 pieces in reference to the year Nicolas Rieussec first tested his inking chronograph at the horse races of the Champ-de-Mars in Paris.
Its rotating domed chronograph disks and horizontal bridge recreate the layout of Rieussec’s original instrument, while the beige sfumato dial incorporates a horse-racing scene inspired by 19th-century Paris.
Inside is Montblanc’s manufacture Caliber MB R200, an automatic monopusher chronograph with a column wheel, vertical clutch, dual time, day/night indication and 72-hour power reserve from twin barrels. Seen through the sapphire caseback, the movement’s symmetrical architecture, curved bridges, Geneva striping and skeletonized rotor give the watch some real mechanical presence. The polished 43mm steel case, with its stepped lugs, onion crown and satinated bezel, stays firmly within the Star Legacy idiom, while a brown calf leather strap shaped like a fountain pen nib and printed underneath with a map of Paris ties the piece back to Rieussec’s world in a way that is detailed, if unmistakably theatrical.
Montblanc’s manufacture Caliber MB R200 features an automatic monopusher chronograph with a column wheel, vertical clutch, dual time, day/night indication and 72-hour power reserve from twin barrels.
Tech Specs
Star Legacy Nicolas Rieussec Chronograph Limited Edition 821
Movement Montblanc Manufacture self-winding Caliber MB R200; 72-hour power reserve
Functions Off-centered hours and minutes; second time zone with day/night indicator; monopusher chronograph; date
Case 43mm × 15.01mm; polished stainless steel; water resistant to 50m
Dial Brown with 1821 Champ-de-Mars horse-race motif; applied rose-gold-coated Arabic numerals
Strap Brown calf leather with 1821 map-of-Paris lining; stainless steel triple folding clasp
Price EUR 9,200
Availability Limited edition of 821 pieces