Automatic model

ATC-40

The impossible watch

Whatever happened to MADE IN JAPAN? Nowadays most mechanical watches found in Japan are manufactured abroad where production costs are lower, with the MADE IN JAPAN inscription only seen on a select few luxury models.
This lack of availability also means that watchmaking techniques are being passed down the generations to an ever lesser degree.
That’s right – Japanese watchmaking is on the verge of extinction. Knot’s core ethos is therefore to create the future of manufacturing, with the creation of a mechanical watch accessible to everyone.
Thus, the AT-38 mechanical watch was born.
The ATC-40, Automatic Mechanical Chronograph, is the latest addition to our range of mechanical chronographs. But how could these components and this technology be offered at this price?
We have achieved what many would have declared impossible. From the movement to the case to the dial, the ATC-40 is the revival of Japanese watchmaking that had long been lost, and at a price that many can afford.
It’s time to experience it for yourself. The mechanical watch by Knot:
The impossible watch.

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A design of
beautiful contradiction.

Two opposites fused into one.
That is the design concept behind the ATC-40,
bringing two overlapping elements into a harmonious balance.
Take the case, for example, which has been cut into the body
to create a 40mm diameter that conveys both lightness and a sense of weight.
Then there’s the dial. Its three sub-dials have been designed
to be both functional and elegant, with the marker fonts adjusted to the nearest micron.
It’s a design that combines stillness and movement,
suitable for any occasion from business to pleasure,
on your wrist forever keeping time.
Knot’s chronograph is a truly beautiful contradiction.

Movement that stirs even
the watchmakers.

“If you use this movement, I want to work with you.”
That’s what watchmakers said to us
when they saw the movement we were planning to use.
It’s a mechanical chronograph movement rarely seen
even in luxury Japanese watches,
and held in exceptional esteem by watchmakers.
The mechanism is highly sophisticated with some 310 parts
– twice the number usually found – its high-beat movement
oscillating 28,800 times per hour.
It’s a mechanism that will bring a smile to your face.
If you listen closely,
you can hear its components singing in harmony.

Polished to perfection

The cases of our mechanical watches are finished
with a special polishing technique performed
by our partners at Hayashi Seiki Seizo Co., Ltd.
They manufacture many of the finest mechanical watches in Japan,
with the case refinement process bearing similarities to Japanese sword making.
Ultra-pure stainless steel is hammered and forged at high temperature,
with the process repeated to produce a case with high metal density.
The finishing touch is a special polishing technique known as “Sallaz polishing”.
It was once used for high-end Swiss watches,
but is now rarely seen due to the advanced level of skill required.
Hayashi Seiki Seizo is home to a formidable team of skilled craftsmen
who carefully polish each piece to a beautiful, undistorted mirror surface.
The impossible has been made possible, and it shines.

Hayashi Seiki Seizo Co. Ltd. is a metalworking manufacturer based in Sukagawa,
Fukushima Prefecture boasting world-class precision metal processing technology.
  • DETAIL 1:

    Two holes

    The upper hole allows you to use a separate type strap, while the lower hole is for a pull-through NATO type. This stabilizes the center of gravity of the entire watch and improves its fit on the wrist.

  • DETAIL 2:

    Lugs

    The lugs have a satin applied to them, matching the treatment on the sides of the case. Our artisanal expertise has been applied to every detail, creating an overall sense of sophistication and quality.

  • DETAIL 3:

    Sapphire glass

    Like the AT-38, the ATC-40 utilizes sapphire glass – the second hardest material after diamond. The anti-reflective coating is applied to on one side only, increasing scratch resistance and visibility of the watch face.

  • DETAIL 4:

    Dial

    The indexes are trapezoidal bars with a three-dimensional feel that is in keeping with the solidity of the case. The metal ring and fonts are finished with extreme precision to express a refined, composed perspective.

MUSUBU MOVIE

MOVIEMOVIE

The case of AT-38 is produced by Hayashi Seiki Seizo Co. Ltd., a company that manufactures watch cases for Japan’s finest mechanical watches.

Hayashi Seiki Seizo Co. Ltd. >

SPECIFICATION

● Case: SUS 316 L 
● Glass: Sapphire glass (anti-reflective coating) 
● Hands: Silver 
● Movement: NE 88/10 ATM (10 water resistant to 10 bar) 
● Number of jewels: 34 
● Normal usage accuracy: average -15 seconds to +25 seconds per day (at room temperature: 5°C to 35°C) 
● Features: 6 hands (hours, minutes, seconds, stopwatch hand (seconds), 30-minute hand, 12-hour hand), date hand 
● Vibrations: 28,800 beats per hour (8 beats per second) 
● Driving system: automatic with manual winding mechanism 
● Power reserve: 45 hours 
● Warranty period: 3 years for movement 
● Size: diameter 40mm, thickness 13.5mm 
● Weight: 91.5g

PREMIUM STRAP

A selection of high-quality straps suitable for premium automatic models

7 products
  • ATC-40SVWH
    Regular price
    ¥115,500
    Sale price
    ¥115,500
    Regular price
    Unit price
    per 
    Out of stock
  • ATC-40SVNV
    Regular price
    ¥115,500
    Sale price
    ¥115,500
    Regular price
    Unit price
    per 
    Out of stock
  • ATC-40SVBK
    Regular price
    ¥115,500
    Sale price
    ¥115,500
    Regular price
    Unit price
    per 
    Out of stock
  • ATC-40SVPT
    Regular price
    ¥126,500
    Sale price
    ¥126,500
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    per 
    Out of stock
  • LD-16SVSV-ATC-40
    Regular price
    ¥19,800
    Sale price
    ¥19,800
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    per 
    Out of stock
  • LD-16BKBK-ATC-40
    Regular price
    ¥23,100
    Sale price
    ¥23,100
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    Unit price
    per 
    Out of stock
  • ATC-40BKBK
    Regular price
    ¥132,000
    Sale price
    ¥132,000
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    Unit price
    per 
    Out of stock