Product Details

The Montblanc Heritage Chronométrie ExoTourbillon combines two of the most important chronometric complications: a chronograph and a revolutionary tourbillon with a stop-seconds mechanism. As the Greek prefix “exo” hints, its balance has been separated from the rotating cage. No longer adversely affected by the inertia of the cage, the balance wheel oscillates with greater isochronism. Developed and crafted entirely in house, the Manufacture Caliber MB R230 features a second complication: a monopusher chronograph with a vertical clutch, a column wheel and a double barrel.

  • Ident Number: 112542
  • Calibre: Manufacture Caliber MB R230
  • Movement Type: Automatic monopusher chronograph, 1-minute ExoTourbillon with stop second
  • Case Size: 44-47 mm
  • Material: 18 K red gold

Movement

  • Movement Type: Automatic monopusher chronograph, 1-minute ExoTourbillon with stop second
  • Calibre: Manufacture Caliber MB R230
  • Balance: Screw balance, Ø 9.7 mm; 12 mg.cm²
  • Power Reserve: Approx. 50 hrs
  • Number of Components: 230 components
  • Frequency: 21,600 vibrations per hour (3 Hz)
  • Balance Spring: Flat hairspring
  • Plate: Rhodium-plated and circular-grained plates
  • Bridges: Rhodium-plated bridges with Geneva stripes
  • Going Train: Wheel train with special toothing for a more efficient power transmission

Case

  • Material: 18 K red gold
  • Dial: Silvery-white dial with red gold-plated indexes and numerals
  • Bezel: Fixed, 18 K red gold
  • Sapphire Crystal: Domed sapphire crystal with double anti-reflective coating
  • Crown: Non-screw crown, 1 O-ring, 18 K red gold
  • Hands: Red gold-plated sword hands
  • Height: 14.79 mm
  • Case Size: 44-47 mm
  • Water Resistant: 3 bar (30 m)

Bracelet / Straps

  • Material: Alligator-skin strap
  • Color: Black
  • Clasp / Buckle: 18 K red gold pin buckle

Details

The Montblanc Heritage Chronométrie ExoTourbillon combines two of the most important chronometric complications: a chronograph and a revolutionary tourbillon with a stop-seconds mechanism. As the Greek prefix “exo” hints, its balance has been separated from the rotating cage. No longer adversely affected by the inertia of the cage, the balance wheel oscillates with greater isochronism. Developed and crafted entirely in house, the Manufacture Caliber MB R230 features a second complication: a monopusher chronograph with a vertical clutch, a column wheel and a double barrel.

  • Ident Number: 112542
  • Calibre: Manufacture Caliber MB R230
  • Movement Type: Automatic monopusher chronograph, 1-minute ExoTourbillon with stop second
  • Case Size: 44-47 mm
  • Material: 18 K red gold
All Details

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