1 Audemars Piguet Royal Oak 40th Anniversary (entire collection)

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At the SIHH show last month, Montblanc introduced the Nicolas Rieussec Chronograph Open Hometime. A new addition to the Nicolas Rieussec collection that features an in-house column-wheel chronograph, like the model originally introduced in 2008, now with a GMT function.

The Nicolas Rieussec Chronograph collection pays homage to Nicolas Mathieu Rieussec, who invented the first chronograph. Rieussec's original 1821 chronograph invention was housed in a large wooden box, and it required ink to record elapsed times on an enameled disk which then needed to be cleaned in-between each measurement. The time writer was hardly practical, but it eventually led to the wristwatch chronographs we know today.

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Montblanc TimeWalker TwinFly Chronograph GreyTech

Mont Blanc has just officially announced the TimeWriter II Chronograph Bi-Frequence 1000, a highly complicated chronograph capable of recording times with 1/1000th of a second precision.

The only other mechanical chronograph capable of recording times with this level of precision is the TAG Heuer Mikrotimer, which was introduced last year. However, the Mikrotimer "currently" has a power reserve of only 2.5 minutes. In comparison, the Bi-Freuquence has a much more useful reserve of 45-minutes. Plus, Bi-Frequence's chronograph display can be read instantly, without requiring complex complications. And most importantly, Mont Blanc's super chronograph is a production ready, whereas the TAG is a concept-only model at this point in time.

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SIHH 2012 is just around the corner; and Montblanc has released an image of a hot new in-house mono-pusher chronograph, the Villeret 1858 Vintage Tachydate.

The Tachydate features a newly developed Minverva based manufacture monopusher chronograph caliber MB M16.32. Highly regarded watch manufacture Minerva, was acquired by Richemont (who owns Montblanc) in 2007. Start, stop and reset functions are all controlled via a single pusher located in the crown. The date is displayed via the subdial at 6 o'clock.

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Ahead of SIHH 2011, which starts in a few weeks, Montblanc has just released images of the Villeret 1858 Vintage Pulsographe, a chronograph that features a pulse scale for calculating pulse rates. This is an in-house chronograph, manufactured at the the Montblanc's Villeret manufacture (formerly Minerva). Calibre MBM 13.21v is hand wound and runs at 18,000 (or 2.5Hz), with a 60-hour power reserve. The movement has been extensively hand finished (which you can read about in detail in the full press release below). The chronograph is a monopusher (one button activates the start, stop and reset functions, as opposed to the standard two button configuration), and features a smooth column-wheel with horizontal coupling. The case is 39 mm x 12.3 mm, which is a perfect size considering that this is a vintage inspired watch.

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Earlier this year Montblanc introduced their first in-house caliber, the MB R100. They named it after the inventor of the chronograph, Nicolas Rieussec. Rieussec's technique of two rotating discs provided the inspiration for the design of the new chronograph.

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[ via Montblanc ]

Here are the specs on a new limited edition watch called the Platinum Star Chrono GMT from pen maker Montblanc.

TECHNICAL SPECIFICATIONS

Automatic chronograph movement with perpetual calendar and GMT functions. Skelleted Art Nouveau Rotor. Officially certified chronometer (COSC). 950 platinum (124 g) case with sapphire crystal case back, diameter 43 mm, sapphire crystal dial, scratch-resistant, domed sapphire crystal with anti-reflex coating, 18 K white gold hours, minutes and seconds hands, water resistant to 30m. Safety locking crown with unique Montblanc diamond (0.055 ct). Handmade black alligator strap with 18 K white gold double folding clasp. Limited edition to 3 pieces.