MONTBLANC COLLECTION VILLERET 1858 / High Complications / ExoTourbillon Chronographe

MODELExoTourbillon Chronographe
Limitation8 pieces
Ident No.106165
MOVEMENT
CalibreMB M16.60
Movement typeManually wound monopusher chronograph with 4-minute ExoTourbillon at 12 o’clock
ChronographMonopusher chronograph mechanism with column wheel and horizontal coupling
IndicationsHours and home time at 6 o’clock, central minutes, seconds at 9 o’clock, day and night display at 4 o’clock
Displays (Chronograph)Central seconds, 30-minute counter at 3 o’clock
Diameter38.40 mm
Height10.34 mm
Number of components341 components
Number of jewels32 jewels (hemispherical, cambered, olive-cut)
Power reserveApprox. 50 hrs
BalanceScrew balance, Ø 14.5 mm; 59 mg.cm2
Frequency18,000 vibrations per hour (2.5 Hz)
Balance springWith Phillips curve
PlateRed gold-plated German silver, circular-grained on both sides, hand-chamfered edges
BridgesRed gold-plated German silver, “Côtes de Genève”, recesses circular-grained on both sides, hand-chamfered edges
Going trainWheels: gold-plated, circular-grained, chamfered, diamond hubs on both sides
Pinions: polished faces and toothing, burnished pivots
CASE
Material18K red gold
Bezel
Sapphire crystalCambered sapphire crystal
Case BackScrewed domed sapphire crystal case back, hinged cuvette with patented release mechanism
CrownIntegrated chronograph button with Montblanc emblem in mother-of-pearl
DialSolid 18K gold dial with hand-crafted silver-plated circular-grained decoration
Hands18K gold, chronograph hands in Pfinodal ®
HornsWith patented cuvette release mechanism
Diameter47mm
Height16.67 mm
Water resistant3 bar (30 m)
STRAP
Material/ColourHand-stitched alligator-skin / Brown
Clasp/BucklePin buckle in 18K red gold