Nooka - Zub Zayu YL - Yellow - The Zub Zayu is Nooka's largest display in the Zub collection. Taken from the Japanese word, sayu, meaning left and right, the Zayu is an asymmetrical timepiece with many innovative features, including the display with the hour "time capsule" graphic, an ergonomic asymmetrical design, as well as a curved case back for an even more comfortable fit. This model is also the first watch with "sleepmode" to conserve battery when not in use. Moreover, the Zayu is a truly ambidextrous design that wears well on both left and right wrists. Case size: 51.5 x 40 x 12mm - Band Width: 22mm - Water Resistance 3ATM - Alarm, Chronograph, Date, Time, Sleepmode - CR2016 Battery (3.0VDC Operating Voltage) - 32,768Hertz Quartz Crystal Oscillation Frequency -TDF LCD Display - Electroluminescent(EL) - Polyurethane Case - Warranty: 1 Year