For the second edition of World Brand Piazza exhibition, a part of Hong Kong View & Clock Fair, A. Lange & Sohne, has prepared three very special models. All visitors is going to be able to see the brand's Lange Double Split Watch, Langematik Perpetual, as well as Lange 31.
The primary exhibited piece, Lange Double Split (Reference 404.035), marked the beginning of a new chapter in development of mechanical watches when it very first appeared in 2005. The reason for such a bold claim could be the fact that this timepiece would be the world's very very first flyback chronograph with a double rattrapante feature.
The complicated rattrapante sweep-seconds function on a chronograph was previously very useful for shorter measurements. This complication, also known as a double chronograph, means that the view has two separate chronograph mechanisms and thus, the capacity to measure two events of unequal durations. Its major flaw was its inability to become used for measurements over 60 seconds. The Lange double Split overcomes this obstacle using the extension of this principle to its 30-minute counter. Besides, it has a flyback function that enables the possibility of instant resetting of both chrono hands with a single push. It even has the ability to display the fastest as well as the slowest laps measured.
Lange Double Split owes its fantastic abilities to its in-house crafted hand-wound Lange Calibre L001.1 movement, with plates and bridges made of silver and with a hand-engraved balance cock. It is also worth noting that Lange Double Split has a electrical power reserve of 38 hours, a platinum case (43 mm wide), a black dial, a sapphire crystal (hardness 9), as well as a hand-stitched crocodile strap with a platinum buckle.
The second piece by the brand, Langematik Perpetual (Reference 310.032), is also a groundbreaking mechanical watch. The view, initial presented with the beginning of the century, will be the very first automatic wristwatch that has a perpetual calendar, oversized date and a new mechanism called Zero Reset that allows both individual and collective advancement of its calendar and moon-phase displays.
The driving force of this timepiece is its self-winding Calibre L922.1 SAX-0-MAT motion with a bidirectional rotor which is fitted into a pink gold situation (this is actually a more recent option, available since 2007), using the diameter of 38.5 mm and the thickness of 10.two mm. Sapphire crystals guard both face plus the case back of your watch. The dial is solid silver in argente color, while the hands are pink gold. The final touch is its hand-stitched brown crocodile leather strap.
The third marvel by A. Lange & o is its Lange 31 (Reference 130.025), a mechanical timepiece with a mind-boggling electrical power reserve of 31 days. On order to be able to achieve this, the view has two mainspring barrels, each and every with the diameter of 25 mm. Two mainsprings are five to ten times bigger than those usually found. As the brand says, they generate energy "enough to lift a 100-gram bar of Swiss chocolate 320 centimeters more than 10 feet". In order to enable the winding of those extra strong springs, the company has replaced the crown with a more traditional solution - a winding key. An additional challenge to construction of such view is enabling a uniform energy delivery for the escapement. For this reason, the brand has designed a constant-force escapement that consists of an auxiliary spring, sporadically rewound by the mainspring.
To involve all these elements, Lange 31 needed a chunky case. It has a platinum situation that may be 46 mm wide and 15.9 mm thick. It holds Lange Calibre L034.1, made of 406 components and with 61 jewels. The watch is shock-proof and has sapphire crystals on its face and case-back. A silver dial involves a large electrical power reserve indicator and a date display. Just like the previous two watches, this watch also has a hand-stitched crocodile strap.
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