KURONO Tokyo – Complications Chronograph 1 Mk.2 Edition 2022
The Chronograph 1 Mk.2 is a new study in gentility and is a significant evolution of our first ever chronograph - incorporating its best design elements into the new Mk.2 chronograph case.
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The Mk.2 chronograph case attempts to overcome significant engineering challenges Hajime Asaoka faced in the construction of the Chronograph 1 - which leveraged the Seiko NE86 that was by itself a thick movement at 7.65mm - and takes in stride collector requests for a thinner case. With the new Mk.2 case, Hajime Asaoka overcame the limitations by incorporating a design technique from the 1930s - to make the thickness of the movement imperceptible on the exterior. The Mk.2 is now a three-part case that has a much thinner visual profile, but is also built more robustly and allows for better repairability. In terms of comfort, the lugs shape and position have been newly adjusted to ensure the same comfortable fit as before.
“The NE86 caliber used by Kurono chronographs is renowned for its reliability and excellent accuracy. By the way, automatic chronograph movements, including the NE86, are generally thick, making it difficult to achieve good proportions with an exterior 38 mm and less in diameter.
The exterior design of the previously introduced chronograph series took the approach of enlarging the proportions of the chronographs from around 34mm to 38mm. The reason for this was that the diameter-to-thickness ratio of hand-wound chronograph movements of the time was close to that of the NE86. As a result, the thickness of the movement is slightly emphasized, giving it a unique impression.
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Dial & sapphire glass
The Chronograph 1 Mk.2 features a high-polish arabic '12' applique at the top, flanked by our iconic polished steel studs as hour markers and a polished steel surround for the date window. The perimeter scale features pulsometer and tachymeter indicators.
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A sapphire box crystal is used to give the watch a beautiful shape, similar to the acrylic glass of vintage watches. It allows for unparalleled light play, where different lighting environments allow for different looks for the watch.
Hands
The combination of leaf hands and modern hour and minute hands is an icon of Kurono. The tips of the minute and chronograph seconds hands are bent by hand to match the curves of the dial and glass. the elapsed-time subdial at '9' is set with a uniquely designed high-polished subhand in the shape of a traditional Japanese 'kyudo' arrow. The different shape of all hands is a device used in the high-end chronographs of the 1950s and 1960s, which Mr. Asaoka is fond of, and is intended to improve legibility. Anecdotally, for the very first Chronograph 1, the hands were bent by hand over the roof of a die-cast toy car to get the perfect angle consistently.
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Kakishibu-iro means the colour of kakishibu (iro=colour). Kakishibu is a fermented juice of the fruit persimmon, and has long been used in Japan as an antiseptic and paint. It is similar to 'salmon' in colour, but slightly brownish. It is also known as 'danjyuro-cha', as it was the favourite colour of the famous Kabuki actor Ichikawa Danjuro. The word 'cha' means brown.
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When I specify the colour of the dial, I actually check it by applying the paint I have formulated myself to the metal plate and hand it over to the person in charge of painting. This is what you see in the bottom left-hand corner of the image. The look of the colour is very important.This is the exact kakishibu-iro." ~ Hajime Asaoka.
Movement
Hajime Asaoka chose the mechanical chronograph calibre NE86 from one of Japan's most esteemed movement manufactures. Positioned by SII as its newest flagship chronograph movement and successor to the 6S - it is a premium caliber, the 311-part movement combines traditional chronograph features like a column wheel, vertical clutch, and a magic lever winding system; it has a unique three-pointed hammer system that starts, stops, and resets all three wheels simultaneously. This allows for all the counters to advance continuously rather than only at one-minute intervals. Additionally, instead of driving the minute and hour counters from the chronograph seconds wheel, each is driven by a powered wheel with its own clutch. This delivers increased accuracy and longer-term durability. The movement has a power reserve of 45 hours. The NE86 is a movement that even Mr. Asaoka, who makes his own movements, trusts.
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TECHNICAL SPECIFICATIONS
Model: Kurono Tokyo Chronograph 1 Mk.2
Limited production of hundreds
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Material: 316L stainless steel, polished
Diameter: 38 mm
Thickness: 11.7mm (13.5mm including sapphire)
Glass: sapphire box crystal
Lug to lug (length): 46.8 mm
Water-resistant to 30 meters (3 ATM)
Dial and hands
Salmon dial
Steel hands
Movement
Caliber NE86
Automatic winding movement
Number of jewels: 34
Frequency: 28,800 vph (4 Hz)
Power reserve approx. 45 hours
Functions/Indications
Hours, minutes, seconds, date, chronograph
Strap and buckle
Calf leather strap
🔰Limited production of 100 Pieces
🔴 Price: MSRP US$ 3,460 (JPY 483,000) and will be available for ordering on 24th November at 11pm JST. ⚠️SOLD OUT
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