KURONO Tokyo – COMPLICATIONS Calendrier SBR Edition

KURONO Tokyo – THE COMPLICATIONS SERIES Calendrier SBR Steel 38mm Edition - 2026 

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A Small Batch Release (SBR) has lower-than-usual production quantities, crafted to make efficient use of unallocated movements and components.

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“For our previous calendar model, I selected a salmon pink dial, though a saxe blue dial was also under strong consideration at the time." ~ Hajime Asaoka

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“I was very fond of both colors, but as the watch was created as a special anniversary edition, I ultimately decided to release only the salmon pink. Still, I could never quite get the saxe blue out of my mind. So, purely as a personal passion project, I decided to revisit the idea." ~ Hajime Asaoka

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“The most notable change from the original proposal is the use of applied Arabic indices. Initially, I had envisioned them in black, as on the salmon pink dial. But it struck me that the contrast between the soft saxe blue and the gleam of metallic chrome would give the dial a particularly beautiful character, which led me to choose applied indices instead. Applied indices are typically produced through stamping, a process that can make very fine and delicate forms difficult to achieve. For this model, however, we used a technique called electroforming. This allowed us to create the intricate shapes I had envisioned and translate the design into reality without compromise." ~ Hajime Asaoka

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 “As always, the exact shade of saxe blue was selected after producing countless physical samples. As it turned out, the color came very close to 2025’s “Shiraai”. But where Shiraai featured a near-matte finish at around 20% gloss, I favored a 70% gloss finish for this saxe blue dial. This choice was dictated by the visual interplay with the radiant indices."

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“AThis specific level of gloss adds richness and depth to the soft blue hue, giving it a completely different personality from Shiraai." 

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The Calendrier SBR will be available worldwide on kuronotokyo.com for US$2,380 excluding VAT & duties.

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Global online ordering starts Thursday, 24 September, 11:00 PM JST. Expected deliveries from end October 2026 onwards.

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TECHNICAL SPECIFICATIONS

Model:  THECOMPLICATIONS Calendrier SBR

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Limited production and will not be repeated

Case 

316L high-polished stainless steel case

Diameter 38mm 

Thickness 10mm (11.5mm incl sapphire)

Unique box sapphire glass 

Solid caseback 

Water-resistant to 5 ATM
Movement

Japan-made cal.9122 triple calendar complication movement

Leveraging a Japanese movement allows for the Kurono Calendrier 'Type I' to be fully Japan made. 

Automatic movement
Number of jewels: 26
Frequency: 28,800 vibrations per hour
Power reserve 40 hours

Complications: full/triple calendar (month, day, date) 

Functions/Indications
Hours, minutes, seconds, triple calendar (month, day, date display)
Dial 

Saxe blue dial 
Strap

Calf leather strap

Widths: 20mm at lugs, 16mm at buckle

 🇯🇵 Made in Japan 🇯🇵

🔰Limited  Strictly ✅1 watch per customer. Limited production and will not be repeated

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The Kurono Calendrier SBR features a triple-calendar complication that shows the day, date and month; apart from the time. Like many other triple calendar watches, we would advise some care when setting the watch *Refrain from changing the month when the windowed date display is showing the 31st. 

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Press Release - 2026
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KURONO Tokyo – SPECIAL PROJECTS Malachite '孔雀石' Dial Special Edition

KURONO Tokyo – SPECIAL PROJECTS Malachite '孔雀石' Dial Special Edition 2026

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Kurono Tokyo is pleased to announce the release of its 2026 anniversary timepiece, the Special Projects Malachite ‘孔雀石’. This release is a personal study by Hajime Asaoka, exploring the expressive beauty of natural stone within the Kurono Tokyo design language.  Special Projects Malachite ‘孔雀石’ will be available worldwide on the official website on Thursday, May 28, 2026, over two sessions starting at 11:00 AM and 11:00 PM JST.

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"The idea of using natural stones for watch dials has a long history. While its beauty is a pure reflection of nature itself, when crafting this watch, I did not want to simply use a raw fragment as is. Instead, I wanted to imbue it with my own perspective as a watchmaker. In short, my goal with this timepiece was to draw out the innate beauty of the natural stone even further while simultaneously adding the distinct character of Kurono Tokyo.” ~ Hajime Asaoka.

The Architecture of the Dial

To achieve Kurono’s signature convex (bombe) dial, Hajime Asaoka combined a natural malachite center with a brass outer section. This periphery is finished with a hand-mixed rokusho (verdigris) green pigment. Sharing the same material roots as the stone, the pigment creates a perfect aesthetic harmony. 

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   "The design features malachite in the center, surrounded by a brass outer section to form a convex dial. I believe there is almost no precedent for this technique, likely due to its extreme technical difficulty. Now, malachite is a type of copper ore, and its rich green color is the result of copper oxidation. As a green pigment derived from copper oxide, verdigris (rokusho) has been known since antiquity. It has been cherished as a pigment in traditional Japanese painting for over a thousand years, and I always keep a supply of it on hand in my atelier.

    In particular, copper oxide dissolved in oil is known as copper resinate; it possesses a deep, translucent green hue and has been used as a pigment in oil painting since the Renaissance. 

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     When creating the prototype this time, I produced copper resinate from verdigris to determine the exact color of the dial's outer periphery. Because it shares the exact same material roots as the green of the malachite, it resulted in the perfect harmony I had envisioned.

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    Every piece of malachite possesses its own unique pattern. Because some individual stones are not necessarily attractive, I personally inspect every single piece and select only the finest ones. The mark stamped on the dial serves as proof of this rigorous selection.”

Ordering Details

An online general sale will be held in two windows—starting at 11:00 AM and 11:00 PM (JST) on May 28th—and because this is an anniversary watch all orders placed within each time window will be accepted. Ahead of the online launch, in-store previews and preorders will be available starting May 20th at the Kurono Tokyo salons in Aoyama and Shanghai, open to both domestic and international customers.

A Masterclass in Patient Production

Turning malachite into a watch dial is a feat of extreme technical difficulty. Unlike most stone dials cut from massive slabs, malachite is cut from nodular clusters that must be X-rayed to find the 'eye' before a single cut is made. Because the stone is prone to fracturing, only 2 out of 10 dials survive the slicing process to make it to final selection.

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 Beyond the technical challenge, Hajime Asaoka personally inspects every piece to ensure only the most attractive patterns are used. Dials meeting his rigorous standards bear his personal vermillion seal—a mark of his final approval. 

Kujaku-ishi: 孔雀石

Malachite—known in Japan as Kujaku-ishi (Peacock Stone)—is named for its resemblance to the peacock’s eye-like plumage. Traditionally worn to sharpen insight and guard one's journey, the stone exhibits a silken chatoyancy, shifting between deep forest shadows and vibrant emerald light. 

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Malachite serves as a 'lithic recording'; each band on the dial represents a specific period of seismic water flow and mineral concentration across tens of thousands of years.

Kanji Zodiac Indices

The indices feature the Etō (the twelve signs of the Kanji Zodiac), traditionally used in East Asia to denote both time and cardinal direction. 

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By integrating this ancient temporal system into a modern timepiece, the watch achieves a distinctive legibility and aesthetic that diverges from conventional Arabic or baton markers. 

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TECHNICAL SPECIFICATIONS

Model 2026 Special Projects 37mm Malachite  '孔雀石'

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Reference: CM026B 

Case
    Material: Stainless steel (316L, high-polished)
    Diameter: 37mm
    Thickness: 7mm (including crystal: 11.5 mm)
    Glass: Sapphire box crystal
    Water-resistant to 30 meters
Dial 
    Malachite dial
    Hand-drawn Breguet hour markers
    Hajime’s own seal in red at 6 o'clock
Movement
    MIYOTA 90S5
    Automatic movement
    Number of jewels: 24
    Frequency: 4 Hz, 28,800 vph
    Power reserve of approx. 40 hours
Functions
    Hours, minutes, seconds
Strap 
    Calf leather strap
    Lug width: 20 mm (16 mm at buckle) 

🔰Limited  Strictly ✅1 watch per customer. Limited production and will not be repeated. 

Wednesday, May 20 - Thursday, May 28, 2026

 🇯🇵Made in Japan

 🔴 Price   USD 1'850 excluding VAT/Duties 💰

Price without taxes - baseline tariffs of 15% for US exports 

 🔴Domestic price including tax 円: 308,000 yen (excluding tax: 280,000 yen)💰

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Press Release - 2026
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KURONO Tokyo –Diver's: ダイバーズ Edition

KURONO Tokyo – Diver's:  'ダイバーズ' 46mm  Edition 2026

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The new Kurono Diver’s: ダイバーズ reconsiders the conventional architecture of a diving watch. The 35mm automatic watch head is secured within a purpose-built diving case, allowing the timepiece to transition seamlessly from refined daily wear to an instrument for recreational diving. Individually tested and rated to 100 meters water resistance, it has been depth engineered for up to 300 meters.

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The new Diver’s: ダイバーズ is a limited study by Hajime Asaoka priced at $2,700 (excl taxes and duties) per set that will be made available worldwide through allocation-via-ballot. Applicants with recreational or better diving certifications (PADI, SSI, NAUI etc) will be prioritized but not guaranteed. A good portion of allocations will be made available to the general public without such certifications. Expressions of interest can be made until 11:59 PM JST on 11 March 2026. Successful applications will be notified by 16 March 2026. Deliveries are expected from May 2026 onwards.

"Upon first encountering this timepiece, the most immediate observation is likely the absence of a crown.

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The crown has always been the Achilles' heel of diving watches. To address this, various innovations have been employed—from screw-down mechanisms to locking levers. Yet, the ultimate solution is to eliminate the crown entirely.

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"Thanks to the high winding efficiency of modern automatic movements, a watch worn regularly rarely stops and maintains excellent precision. Once the time is set, the need for crown manipulation is virtually non-existent. It was this realization that inspired my concept: to encapsulate the entire wristwatch within a dedicated waterproof casing."

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"When diving—or in any situation requiring absolute water resistance—placing the watch into this outer diving case transforms it into a professional tool capable of withstanding depths of up to 300 meters. This is the defining characteristic of the Kurono Diver's."

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"The development of this timepiece spanned many years, involving exhaustive field tests and high-pressure trials. To verify our peak performance metrics, we conducted rigorous evaluations in collaboration with official Japanese public research institutes to ensure this exceptional level of water resistance." ~ Hajime Asaoka

 46mm Diving Case

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"Operation is intuitive and seamless. The bezel functions as a threaded lid; using a dedicated opener, it can be easily unscrewed counter-clockwise. Furthermore, the bezel features a unidirectional rotation mechanism—an essential for divers—to track elapsed time while preventing the case from accidentally loosening. For lighter use, the case can be opened or closed by hand without the tool; so long as the bezel remains secure when tested counter-clockwise, the seal provides water resistance equivalent to 10 ATM.

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The bezel is crafted from Extra Super Duralumin, finished in a deep red through hard anodizing. This specific shade of red is designed to maximize contrast with the white-engraved indices, ensuring peak legibility underwater." ~ Hajime Asaoka

Quick-release

The inner watch features a strap with quick-release design, allowing for attachment and removal without tools.

The watch will be available for preview and try-on at both Aoyama and Shanghai salons. 

How to join EOI

• The Diver’s:ダイバーズ will be made available worldwide through allocation-via-ballot.
• The EOI (Expression of Interest) is open worldwide.
• Applicants with recreational (or higher) diving certifications (e.g., PADI, SSI, NAUI, etc.) will be prioritized, but not guaranteed to receive an allocation.
• You can still apply without a certification - a good portion of allocations are reserved for applicants without diving certifications. 

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TECHNICAL SPECIFICATIONS

Collection: Diver 

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  Model: Diver's: ダイバーズ Edition

Movement
    MIYOTA 90S5
    Automatic winding
    Number of jewels: 24
    Frequency: 28,800 vph
    Power reserve of 40 hours
Functions
    Hours, minutes, seconds
Case
    Material: Stainless steel (316L, high-polished, solid caseback)
    Dimensions: 35 x 35 mm
    Thickness: 9 mm (incl. crystal)
    Lug-to-lug: 37.4 mm
    Glass: Sapphire crystal
    Water-resistant to 5 ATM
    Lug width: 19 mm
    Buckle width: 16 mm
    Strap: Calf leather
With diving case
    Material: Stainless steel (316L, high-polished, solid caseback)
    Diameter: 46 mm
    Thickness: 13.5 mm (incl. crystal)
    Lug-to-lug: 56.7 mm
    Glass: Sapphire crystal
    Water-resistant to 10 ATM
    Lug width: 24 mm
    Strap:  Rubber
    Buckle width: 22 mm
Dial 
    White dial
    Blued hands

Made in Japan 🇯🇵 Availability
🔰Limited production.
 🔴 Price:  USD 2'700 (excl. taxes)💰
⚠️Expected deliveries from mid-March 2026 onwards 

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KURONO Tokyo – 2026 SPECIAL PROJECTS 37mm INSEKI '隕石' Edition

KURONO Tokyo – SPECIAL PROJECTS INSEKI '隕石' Meteorite Dial Special Edition 2026

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  A collection that embodies new interpretations of Art Deco

Introducing the new Kurono Special Projects 37mm INSEKI ‘隕石’, a personal study by Hajime Asaoka as he brings meteorite into the Kurono Tokyo design language after many years of contemplation.

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Gray meteorite is complemented by a white lacquered ring that features Hajime's personally designed Calligra typeface painted in high relief, with the monochromatic look finished with hand-bent high-polished steel hands.

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" ’d actually been thinking about using meteorite for Kurono for quite some time. I felt that the contrast between meteorite’s rugged texture and our soft, gentle case design would be fascinating. But there were two challenges in bringing the idea to life. One of the defining features of the Kurono Tokyo is its cylindrical dial, and I wanted to preserve that even when working with meteorite. Shaping meteorite itself into a cylindrical form is extremely difficult, so I explored a bull’s-eye design instead—using meteorite for the central section and giving the surrounding area a gentle curve toward the outer edge. With this approach, I think we achieved a meteorite dial that still feels distinctly like a Kurono Tokyo." -  
Hajime Osaoka.

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 "The meteorite we used is called the Muonionalusta meteorite, which fell in what is now Sweden roughly one million years ago. Its main component is iron, and when you cut and etch it, differences in its crystalline structure reveal distinctive natural patterns. Because of this, every meteorite dial is unique; no two are ever the same. At times, though, the pattern can turn out somewhat plain—that was the second challenge. To address this, I personally inspected every single dial and selected only those with compelling patterns. As proof of that selection, I added my personal seal to the dial. A million years is long before the emergence of humankind. When you glance at your watch to check your plans for the day and see a piece of meteorite that has endured for such an immense span of time, the hours of everyday life start to feel incredibly small. That’s what I felt while wearing the prototype. This watch may even make you a little more relaxed (perhaps too relaxed) about time. Consider yourself warned :)"

Individually selected dials

At times, the natural pattern of meteorite can appear understated. To ensure that only the most visually compelling meteorite patterns were used, Hajime Asaoka personally inspected every single dial. 

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Only those with strong, well-defined character were selected for final assembly. As a mark of this personal selection, each watch bears Hajime’s own seal on the dial.

Unique Calligra typeface

Hajime Asaoka drew upon his art school training in lettering and personally hand-drew each of the Breguet numerals (1 to 12) using a pen to ensure an authentic, human touch, similar to how original Breguet markers were created two centuries ago. 

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The best examples were then carefully selected, enlarged, and used as the original template. Here, the indices are painted black in high relief against white lacquer.

About MUONIONALUSTA

The Muonionalusta meteorite is an iron-nickel meteorite classified as a fine octahedrite (type IVA). It is one of the oldest known meteorites found on Earth, with a formation age estimated at over 4.5 billion years, predating the Earth itself. Studies have shown it impacting the Earth (northern Scandinavia) during the Quaternary Period, about one million years ago. 

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It is quite clearly part of the iron core or mantle of a planetoid, which shattered into many pieces upon its fall on our planet. Since then, it has survived four separate ice ages, which helped preserve its structure in the Arctic permafrost.

Widmanstätten Pattern: When sliced and etched with acid, it reveals a striking geometric crystal structure known as the Widmanstätten pattern. These patterns form through the extremely slow cooling of iron-nickel alloy in space—roughly 1°C every million years. 

 Composition: It consists of approximately 91% iron and 8.4% nickel, with trace amounts of rare elements like gallium, germanium, and iridium.

The Kurono Special Projects 37mm INSEKI '隕石' is a limited production release and will not be repeated. Strictly one purchase per customer.

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TECHNICAL SPECIFICATIONS

Model 2026 Special Projects 37mm INSEKI '隕石'

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Case
    Material: Stainless steel (316L, high-polished)
    Diameter: 37mm
    Thickness: 7mm (including crystal: 11.5 mm)
    Glass: Sapphire box crystal
    Water-resistant to 30 meters
Dial 
    Meteorite dial
    Hand-drawn Breguet hour markers
    Hajime’s own seal in red at 6 o'clock
Movement
    MIYOTA 90S5
    Automatic movement
    Number of jewels: 24
    Frequency: 4 Hz, 28,800 vph
    Power reserve of approx. 40 hours
Functions
    Hours, minutes, seconds
Strap 
    Calf leather strap
    Lug width: 20 mm (16 mm at buckle) 

 

🔰Limited  production and will not be repeated. Strictly ✅one purchase per customer.

Expected deliveries from end February 2026 onwards.

 🇯🇵Made in Japan

 🔴 Price   USD 1'850 excluding VAT/Duties 💰

Price without taxes - baseline tariffs of 15% for US exports 

 🔴Domestic price including tax 円: 308,000 yen (excluding tax: 280,000 yen)💰

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KURONO Tokyo – Vermilion Chronograph 'SHU朱' Edition

KURONO Tokyo – SALON EDITIONS Vermilion Chronograph 'SHU朱' Special Edition 2025

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Kurono introduces a small batch limited release - the Kurono Vermilion Chronograph 'SHU:朱'. Available only at Kurono salons.

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The Vermilion Chronograph is boldly presented in a distinct orange-red vermilion "SHU:朱" - and often associated with power nobility, warding off evil and ushering good luck. 

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A symbol of fire and purification, vermilion is famously used on torii gates, precious urushi, and samurai armor.

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Only a limited number of examples of the Vermilion Chronograph will be made and can be purchased in-person only at the Kurono salons in Tokyo and Shanghai starting 22 August 2025.

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At Kurono Tokyo, we conduct ultraviolet exposure tests during the development stage. Here’s how we do it: we take a prototype dial and stick it to the south-facing window of my atelier. Half of the dial is covered with black tape. It then stays exposed to sunlight—about 40 days in summer and 60 days in winter. This is equivalent to more than 10 years of exposure under normal use. At the end of the test, the black tape is removed, and we check whether there is any difference in color. I had long wanted to create a chronograph with a vivid orange dial, but most paints (pigments) failed this test. Only two pigments passed: ‘selenium red’ and ‘vermilion.’ These were the vivid orange colors I had finally found that would not fade.” ~ Hajime Asaoka

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On the wrist, the Vermilion Chronograph is a bold statement highly recognizable from near or afar, and at 38mm is based on the slim Mk.2 chronograph case.

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The Kurono Vermilion Chronograph ‘SHU:朱’ is available ONLY for in-person purchase at the Kurono Tokyo Aoyama salon and Kurono Tokyo Shanghai salon from 22 August 2025. 

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 Online ordering is not available. 

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TECHNICAL SPECIFICATIONS

Collection: SALON EDITIONS  

 Model: Kurono Tokyo Vermilion Chronograph 'SHU:朱' Special Edition

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Case
Material: 316L stainless steel, polished
Diameter: 38mm
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
Orange-red dial
Black chronograph subdials
The radial in medium carmine color
Gothic numerals at 12 and 6
High-polish leaf hands
Movement
Caliber NE68PWT
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
Black calf leather strap
Classic steel buckle with a spike lock.

Made in Japan 🇯🇵 Availability

The Vermilion Chronograph 'SHU朱' is available online worldwide, and for in-person viewing and ordering at the Shanghai and Aoyama salons.

🔰Limited production and will not be repeated.

 🔴 Price:  💰JPY 598,950 incl tax (544,500 excl tax) at Aoyama Salon
RMB 29,300 incl tax at Shanghai Salon


⚠️Expected deliveries from mid-August 2025 onwards 

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