Montblanc Unveiled Secret Minerva Monopusher Chronograph in Distressed Steel

Following the release of the Montblanc Unveiled Secret Minerva Monopusher Chronograph Lime Gold and stainless steel models in 2022, Montblanc has launched a new limited edition in distressed steel.

Montblanc 1858 The Unveiled Secret Minerva Monopusher Chronograph Limited Edition in Distressed Steel

This new model has a 43mm diameter case, spotlighting a distressed steel finish achieved by treating with a black coating. The material is then manually washed and brushed with quartzite from the Mont-Blanc and limestones from the “V”-shaped mountain opposite the Villeret Manufacture, called La Combe Grède. This interesting treatment gives each timepiece its very own individual patina and appearance.

Montblanc 1858 The Unveiled Secret Minerva Monopusher Chronograph Limited Edition in Distressed Steel

Limited to 88 pieces, the new version of Montblanc Unveiled Secret Minerva Monopusher Chronograph comes with a white gold fluted bezel inspired by Minerva’s first fluted bezel that dates back to 1927.

Each Montblanc Unveiled Secret Minerva Monopusher Chronograph houses a historic hand-wound Minerva MB M16.29 movement with all its meticulous hand-finishing.

This mesmerizing movement has been flipped over to display all the mechanical action on the dial side of the watch. This is one of the first times in Minerva’s 165-year history that a timepiece features the movement on the dial.

Turning a movement over sounds simple, but it is a technical feat as the direction of the hands also has to be reversed. The MB M16.29 calibre was one of the only movements in Montblanc’s archive of chronographs where this could be achieved.

Montblanc 1858 The Unveiled Secret Minerva Monopusher Chronograph Limited Edition in Distressed Steel

Reversing the direction of the dial hands required the addition of 21 components, making this more than an aesthetic feature, but a truly technical one too. And just for fun, the Maison has turned the last digit of the reference number upside down to represent this change, so MB M16.29 becomes MB M16.26.

The sapphire crystal glass offers the view of detailed level of finishing on the sanded German silver movement and the beauty of the bridges and plates that have been coated with anthracite ruthenium to match the tone of the case. A keen eye will also detect the Maison’s unique snailed diamantage coquille motif and the thorough polishing, which includes the inner angles of the components.

In keeping with all Montblanc’s complicated movements, the distinctive Minerva arrow and the Maison’s “V”-shaped bridge are also on display. The Minerva arrow is a tribute to the Roman Goddess who is always depicted with her arrow-tipped staff in hand, and the unusual “V”-shaped bridge comes from the view of the mountains seen from the watchmakers’ window in Villeret, a sight that has been a constant since the founding of the workshop in 1858.

Montblanc 1858 The Unveiled Secret Minerva Monopusher Chronograph Limited Edition in Distressed Steel

Particular attention has been paid to the indications so that they don’t distract from the movement with an open-worked 30-minute chronograph counter, an open-worked small seconds display, and elegant hands and indexes that have been created with Super-LumiNova® for enhanced legibility.

This Montblanc Unveiled Secret Minerva Monopusher Chronograph comes with a black nubuck alligator strap with a distressed steel triple-folding clasp. The steel caseback features an engraving of the historic Minerva Manufacture.

Technical details

Model: Montblanc 1858 The Unveiled Secret Minerva Monopusher Chronograph Limited Edition in Distressed Steel, Ident: 131155

Movement
Montblanc Manufacture Calibre MB M16.26
Manufacture hand-finished manually wound movement
Reversed movement with regulating organ, going-train, bridges and plate visible through watch’s dial
Chronograph Monopusher chronograph with column wheel and horizontal coupling
Diameter: 37.50mm
Height: 7.05mm
Number of components: 273
Number of rubies: 26 jewels
Power Reserve: Approx. 50 hours
Balance with screws, diameter: 14.50mm
Frequency: 18 000 A/h (2,5Hz)
Hairspring: With Philips curve
Plate: Rhodium-plated German silver with circular graining on both sides, hand-chamfered edges
Bridges: Rhodium-plated German silver bridges with Geneva Stripes, circular graining on both sides, hand-chamfered edges
Going-train: Gold-plated, circular grained, chamfered, diamond hubs on both sides

Displays
Hour and minute from the center, small seconds at 9 o’clock
Chronograph’s elapsed-seconds hand from the dial’s center, 30-elapsed minute counter at 3 o’clock
Habillage

Case
Distressed steel with satinated and polished finishing
Bezel: 18K white gold fixed fluted bezel, satinated and polished
Crystal: Scratch-resistant, domed box-shaped sapphire crystal with anti-reflective coating
Stainless steel caseback with historic Minerva Manufacture special engraving
Diameter: 43mm
Height: 14.18mm
Water resistance: Approx. 3 bar (30 m)
Crown: Fluted black-coated stainless steel crown with Montblanc emblem in relief
Pusher: Monopusher chronograph button integrated into the crown

Dial
Skeleton dial with white luminescent ruthenium-coated Arabic numerals and indexes
White luminescent ruthenium-coated hour and minute hands
Rhodium-coated seconds hand
Rhodium-coated chronograph minute hand with white arrow
White chronograph seconds hand, historical Montblanc logo

Wristband
Black nubuck alligator leather strap with black-coated stainless steel triple-folding clasp with fine adjustment system

Edition
Limited edition of 88 pieces

Certification
Certified by the Montblanc Laboratory Test 500H

Other versions
Lime Gold: Limited to 18 pieces, released in 2022
Stainless steel: Limited to 58 pieces, released in 2022