Automatic model

AT-40 Sports

The first made-in-Japan mechanical sports model that meets the needs of the times.

In recent years, as business casual style has gained acceptance, the many requests that have come in from Knot fans have resulted in a sports model that is an authentic made-in-Japan mechanical model with water resistance of 20 ATM.
Boasting a case thickness of 11 mm and a form that is slim for a sports model, this watch fits closely for wearing in business situations. Its beautiful mirror surface, achieved through SALLAZ polishing, confers dignity to the arm, making it a sports model that fits in with suit styling.
From casual to business, this made-in-Japan mechanical sports model meets the needs of the times.

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Water resistant to 20 ATM for activity in more scenarios.

Water resistant specifications make this watch wearable in a variety of situations, including work around water, swimming, surfing, and other water activities.
The crown features a screw-lock mechanism to prevent water ingress, while a crown guard enhances robustness.

* "20 ATM" refers to water resistant performance up to 20 atmospheres. The watch it is not a diving model and cannot be used for activities such as diving.
* The crown uses a screw-lock mechanism. Water resistance cannot be ensured unless the crown is tightened firmly. Turn the crown firmly while gently pushing inward, until the crown stops.

Water resistant to 20 ATM for activity in more scenarios.

Water resistant specifications make this watch wearable in a variety of situations, including work around water, swimming, surfing, and other water activities. The crown features a screw-lock mechanism to prevent water ingress, while a crown guard enhances robustness.

* "20 ATM" refers to water resistant performance up to 20 atmospheres. The watch it is not a diving model and cannot be used for activities such as diving.
* The crown uses a screw-lock mechanism. Water resistance cannot be ensured unless the crown is tightened firmly. Turn the crown firmly while gently pushing inward, until the crown stops.

Emits light continuously for five hours in the dark.
Made with luminous paint manufactured by Nemoto & Co., Ltd., holders of the world's largest market share for luminous pigments!

Luminous paint applied to the index of the dial and to the hour and minute hands enhance visibility in the dark. LumiNova® is a patented technology of Nemoto & Co., Ltd., a company that boasts a global market share of 80% and a domestic market share of almost 100% for luminous pigments. The world's premiere luminous pigment, LumiNova® exhibits 10 times the brightness of the conventional pigments and over 10 times the afterglow time.This advanced technology can only be achieved by Nemoto & Co., Ltd., which has both the luminous pigment technology and the printing precision to apply pigment to the index and hands of watches with micron-level precision. This advanced technology can only be achieved by Nemoto & Co., Ltd., which has both the luminous pigment technology and the printing precision to apply pigment to the index and hands of watches with micron-level precision.
(Achieves 3mcd/㎡, the standard for afterglow luminance visible in the dark after 5 hours)

A sporty bezel design, engraved for a satin finish.

The bezel is engraved with a 60-minute/second track (graduation).
The beautiful satin finish created by Hayashi Seiki Seizo Co., Ltd., the pinnacle of luxury watch case manufacturers in Japan, enhances the visibility of the engraving and evokes a sporty atmosphere.
You can feel the quality in the movement of the second hand, a unique high beat movement that advances the hand in fine increments over the course of a second.

A sporty bezel design, engraved for a satin finish.

The bezel is engraved with a 60-minute/second track (graduation).
The beautiful satin finish created by Hayashi Seiki Seizo Co., Ltd., the pinnacle of luxury watch case manufacturers in Japan, enhances the visibility of the engraving and evokes a sporty atmosphere.
You can feel the quality in the movement of the second hand, a unique high beat movement that advances the hand in fine increments over the course of a second.

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Styling

Material

Movement

The beating heart of the watch, Knot adopted the CITIZEN MIYOTA-made Cal.9015, a Japanese–manufactured high beat movement. This high beat movement oscillates 28,800 times per hour (8 times a second), reducing the distance of the swing of the second hand and drastically increasing the precision of the watch.
The thickness of the Cal.9015—a mechanical movement that MIYOTA revived after a period of around 30 years as a thin-type high performance 8-beat movement—is a mere 3.9mm, unrivalled even by the Swiss-made ETA2824, which gained worldwide popularity.

Sapphaire Glass

For anti-wind protection, it adopts the same anti-reflective coated sapphire glass used in luxury watches. This glass is coated on one side only, therefore increasing the visibility of the clock face while at the same time minimizing discoloration of the glass due to coatings.

Spec

Model number: AT-40S
Number of jewels used: 24
Type: mechanical self-winding watch
Timekeeping precision: average daily error −10 seconds/+30 seconds (at normal room temperature: 5°C〜35°C)
Display functionality: 3 hands (hours, minutes, seconds), date
Water resistant: 20 ATM
Beats/oscillations: 28,800 oscillations per hour
Drive method: mainspring (self-winding and manual winding)
Sustained running time: 42 hours
Movement guarantee period: 3 years

3 products
  • AT-40SSVNV
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    ¥75,000
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    ¥75,000
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  • AT-40SSVWH
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    ¥75,000
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    ¥75,000
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  • AT-40SSVBK
    Regular price
    ¥75,000
    Sale price
    ¥75,000
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    per 
    Out of stock