For the 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 frequency of 28,800 per hour (8 times a second), reduce the distance of the swing, 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. The AT-38 model makes maximum use of the features of the Cal.9015 movement, fitting the components into a case of 38mm in width, the standard for a dress watch, while at the same time achieving a total thickness of 10mm. In addition, because the back cover of the watchcase is a clear, see-through back, the wearer can also see the internal working of the watch with their own eyes.
For anti-wind protection, the AT-38 model adopt 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 watch face while at the same time minimising discoloration of the glass due to coatings.
・Model number: AT-38
・Precious stones: 24stones
・Type: Mechanical self-winding watch
・Time precision: Average day difference -10 seconds/+30 seconds (at room temperature: 5℃ ~ 35℃)
・Display functionality: 3 hands (hours, minutes, seconds), date
・Frequency: 28,800 vibrations per hour
・Drive method: mainspring (self-winding and manual winding)
・Duration: 42 hours
・Movement guarantee period: 3 year
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