Racing drivers have always strived for faster lap times with increasingly powerful and efficient vehicles, experimenting with technology, materials and more in their quest to win. The same is true for Montblanc, which has never stopped innovating and pushing the boundaries of fine watchmaking technology. In 1916, the Minerva Manufacture developed its famous 1/100th of a second stopwatch, which was further technically improved in 1936, putting Minerva on the map as the specialist of professional watches and stopwatches. Montblanc continues to innovate with the Montblanc TimeWalker Chronograph 1000 Limited Edition 18, a mechanical chronograph that measures elapsed time to the 1/1000th of a second.
The spirit of racing is not only found on the inside of the timepiece, but also on the outside, with design elements that hark back to the glory days of motor racing. The chronograph power reserve indicator is inspired by old fuel gauges, while the black and red details and the 1/1000th of a second indication are reminiscent of early dashboards. Knurled crowns and bezels evoke vintage petrol tank caps, and red holes in the black alligator strap are typical of the driving gloves that were so popular with gentlemen racers. The timepieces feature a high-frequency balance wheel that has also been inspired by the performance of racing cars, and a monopusher chronograph at 12 o’clock, which mirrors the Minerva stopwatches that were used for timing car races.
A sophisticated combination of high-tech materials has been chosen for the Montblanc TimeWalker Chronograph 1000 Limited Edition 18, starting with the 46.4 mm titanium case and semi-skeletonized horns that have all been satinated and treated with a black DLC coating for ultimate scratch-resistance, robustness and lightness. The case is complemented by a titanium monopusher at 12 o’clock and a fixed black ceramic bezel that has been engraved with white Arabic numerals that characterize the overall design of the line and accentuate its legibility and performance.
The dial is a multi-layer construction with black horizontal stripes, red indications and a red gasket, which is framed by a smoked sapphire crystal, enhancing the sporty and racing aesthetic.
Recording the time to 1/1000th of a second is a feat of horological engineering. The Montblanc TimeWalker Chronograph 1000 Limited Edition 18 works thanks to one movement with two hearts: the first heart indicates the time functions, and the second one is in charge of the chronograph indications. The hours and minutes are at the centre of the dial with the addition of a small second counter with a rhodium-plated hand at 9 o’clock. The hour, minute and second displays keep time accurately thanks to a large balance with 18 screws, which beats at the traditional pace of 18,000 semi-oscillations per hour. This balance wheel is partially visible through the skeletonized dial at 7 o’clock. All other indicators serve the chronograph function, to which this exclusive timepiece devotes the highest priority. The chronograph’s small balance can be seen at 10 o’clock showing oscillations at a rate of 360,000 semi-oscillations per hour (50 Hz). In order to allow a finer adjustment and then further improve its precision, the chronograph’s small balance wheel has been equipped with two hairsprings, which are fixed on top of each other.
In order to go further and measure a thousandth of a second, the Montblanc engineers had to innovate. They developed a movement with a balance beating with a frequency of 360,000 semi-oscillations per hour. This rapid oscillator completes 100 to-and-from motions per second, i.e. 50 times in one direction and 50 times in the other. This tempo not only guides the motion of the 1/100th dedicated mechanism, but it also sets the pace for delivering an impulse of energy that sets into rotation an innovative wheel in the gear train, the so-called “thousandth wheel”. Powered in this fashion, it rotates around its own axis at a uniform speed of ten rotations per second and thus provides the resolution with which hundredths of a second can be further divided into sets of ten increments.
Rather than remaining continually in motion, the separate balance for the chronograph begins to vibrate only when the start function is activated by a flexible steel lamella or whip mounted behind the arrowhead of the chronograph rocker. When the stop function is triggered, this slender steel plate stops the small 50-Hertz balance and holds it motionlessly in place until it is needed again.
The chronograph function is powered by its own barrel, which stores enough energy to measure intervals of up to 45 minutes in duration. An elapsed-time measurement can be indefinitely extended by turning the crown anti-clockwise while the chronograph is running, thus adding fresh energy to the chronograph’s barrel. The going train for the ordinary time display draws its energy from a second barrel that guarantees a 100-hours of power reserve.
This long-lasting power reserve also contributes to the regularity of the amplitude of the balance beating at 360’000 oscillations per hour which, in turn, enhances the precision of the time measuring—a decisive advantage for accurately measuring intervals to the nearest thousandth of a second.
A slightly inset display at 3 o’clock indicates the remaining reserve of power for the chronograph’s movement which, when fully wound, will operate for more than 45 minutes. The power-reserve display also serves as a helpful indicator for the chronograph because it shows how much longer the chronograph will continue to run beyond the 15-elapsed minutes it can tally.
The mainspring for the ordinary timekeeping movement is wound by turning the crown clockwise (the power reserve is about 100 hours). Turning the crown counter-clockwise winds the separate mainspring for the chronograph’s movement, which delivers optimal measuring results for more than forty-five consecutive minutes. To tally lengthier intervals, power can be conveyed to the chronograph’s barrel by turning the crown while the chronograph is running. Pressing the button between the horns at 12 o’clock starts the chronograph and sets the long red chronograph second hand in motion as it races around the main dial once per second. Double counters at 6 o’clock tally its rotations. The small red hand on the chronograph’s power-reserve display gradually progresses upwards, and the 1,000th-of-a-second arrowhead at 12 o’clock points motionlessly toward the “N”. When the chronograph button is pressed again, the entire system instantly halts and the duration of the elapsed interval can be read: beginning with the number of elapsed minutes on the inner scale on the double counter at 6 o’clock, followed by the elapsed seconds on the outer scale of the same subdial, continuing with the hundredths of a second on the peripheral scale surrounding the main dial, and culminating with the thousandths of a second in the display at 12 o’clock. The entire process is simple, clear, quick and requires no additional calculations.
Montblanc TimeWalker Chronograph 1000 Limited Edition 18
Montblanc Manufacture Calibre MB M66.26
Manually wound monopusher chronograph with a balance wheel for the time indication and a separate balance wheel for the chronograph
Chronograph: Monopusher with column wheel
Dimensions: Diameter = 38.4 mm; height = 10.60 mm
No. of components: 488
No. of rubies: 46
Power reserve: Approx. 100 hours for the time & approx. 45 min. for the chronograph
Balance: Time indication: balance with screws, Ø 11.4 mm, moment of inertia: 26 mgcm2; chronograph: smooth hoop, Ø 6 mm
Frequency: Time indication: 18,000 A/H (2.5 Hz); chronograph: 360.000 A/H (50 Hz)
Hairspring: Time indication: flat with Phillips terminal curve, chronograph: flat
Plate: Rhodium-plated German silver, circular-grained on both sides, hand-chamfered edges
Bridges: Rhodium-plated German silver, “Côtes de Genève”, circular-grained on both sides, hand-chamfered edges
Going-Train: Gold-plated, circular-grained, chamfered, diamond hubs on both sides; pinions: polished faces and toothing, burnished pivots
Displays (watch): Hours and minutes in the centre, small seconds at 9 o’clock
Displays (chrono): 1/100th of a second in the centre (1 turn/sec.), 60-elapsed seconds and 15-elapsed minutes counters with double indication hands and corresponding sectorial scales, 1/1000th of a second counter at 12 o’clock; Power reserve indication for the 1000th of a second at 3 o’clock
Material mix consisting of satinated black DLC titanium
Crystal: Satinated black DLC titanium horns, high-tech black ceramic bezel Sapphire crystal
Back: Black DLC titanium back with screws & inset pane of sapphire crystal
Dimensions: Diameter= 46.4 mm; Height= 17.34 mm
Water-resistance: 3 bar
Crown: Black DLC titanium with knurled finishing & inlaid Montblanc emblem
Black grainé dial with horizontal stratus and transparent opening, silvery-white dauphine-shaped hour-hand and minute-hand with SuperLuminova, small second counter with silvery-white hands, red and black-colour chronographs hands
Black alligator leather strap with red stitching & asymmetric holes, stainless steel and black DLC triple folding clasp
Limited Edition of 18 pieces
Certified by the Montblanc Laboratory Test 500
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