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Montblanc 1858 Minerva Monopusher Chronograph P.05 (Limited Availability)

Montblanc 1858 Minerva Monopusher Chronograph P.05 (Limited Availability)

A Sporting Take on Minerva

An 1858 Minerva Monopusher Chronograph evoking the brand’s historical sporting stopwatches. Signed with the Minerva logo on the dial and limited to just 30 examples, the watch is available exclusively from Collective Horology.

  • Stopwatch-inspired dial and strap
  • Minerva-signed dial
  • Minerva Calibre M13.21
  • 42mm stainless steel case
  • Bi-directional blue timing arrow
  • 18K white gold rotating bezel
  • "1 of 30" case back engraving
  • Includes Collective membership

Full specifications below.

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Minerva-signed Dial

The P.05's dial is double-signed with both the Minerva and Montblanc logos at six and twelve o’clock respectively. The prominence of the Minerva logo to the dial is a recognition of the deep love many enthusiasts have for the brand and the legendary chronograph caliber that lies within.

Inspired by Eric Wind

When we saw a vintage Minerva stopwatch sitting in Eric Wind’s case at last year's Windup Watch Fair in Chicago, lightning struck. The stopwatch not only highlighted Minerva’s prominence as a maker of precision chronographs, but also showed the way for a sportier, colorful take on their current collection.

In particular, the P.05 draws on the design, colors, materials and finishes of Minerva’s mid-century stopwatches. It begins with the watch’s white lacquered dial, accented by yellow subdials and blue scales pulled from Minerva sporting stopwatches. The thermally-blued hands, rotating blue timing arrow, and steel case also nod to those legacy watches. Even the textile strap evokes the nylon cords affixed to sporting stopwatches.

The "Blue Arrow"

At the top of the dial is the rotating blue timing arrow, controlled by a bi-directional 18K white gold fluted bezel. The arrow adds another timing complication to the watch, based on historical Minerva stopwatches and wristwatches. In 1927, Minerva introduced a stopwatch with an internal rotating bezel for countdown timing (shown above). This was followed in 1939 by a chronograph wristwatch – known affectionately as the "Red Arrow" – featuring a fluted rotating bezel, designed to be easily operated by pilots wearing gloves.

Hand-finished Minerva Calibre

Painstakingly finished, Minerva's movements require more than two full days of handwork to decorate. Even the underside of each component is finished by hand. Perhaps the quintessential demonstration of Minerva’s commitment to finishing is the Devil’s tail on the lateral clutch – a lyrical design flourish which showcases Minerva’s skill at hand-finishing internal angles.

Full Specifications


  • Caliber: MB M13.21
  • Chronograph with central second-hand and 30-minute counter
  • Manual-winding
  • 60-hour power reserve
  • Screw balance with Philips curve
  • Devil’s tail lateral clutch
  • Rhodium-coated German silver bridges with "Côtes de Genève", circular graining on both sides, hand-chamfered edges
  • Going-train gold-coated, circular grained, chamfered, diamond hubs on both sides
  • Rhodium-plated German silver plate, circular-grained on both sides, hand-chamfered edges

Case & Strap

  • 42mm stainless steel case
  • 12.5mm case thickness/height
  • 51.5mm lug-to-lug
  • 20mm lug width
  • Watch shown above on 6.5 inch/16.5 cm wrist
  • 18K white gold bi-directional rotating bezel
  • Domed sapphire crystal with anti-scratch treatment
  • Sapphire crystal case back
  • Fluted crown in stainless steel with Montblanc emblem in relief
  • 3 bar (30 m) water resistance
  • Black textile strap with leather lining and deployant clasp

Dial & Hands

  • Stopwatch-inspired color palette
  • Telemeter (outer) and tachymeter (inner) scales
  • Thermally-blued central chronograph and totalizer hands
  • Luminous hour and minute hands
  • Bi-directional rotating blue arrow (operated by 18K white gold fluted-bezel)