Zoc ZenH Black Crocodile - The Nooka Zoc provides the fashionable time piece you've come to expect from Nooka with the additional style and luxury of a genuine crocodile band. Size: 35 x 35 x 10mm/Band Width: 28mm - Water Resistance 5ATM - Functions: Alarm, Chronograph, Date, Time - CR2016 Battery (3.0VDC Operating Voltage) - Module 32,768Hertz Quartz Crystal Oscillation Frequency - TDF LCD Display - Electroluminescent(EL) - Case Material: Stainless Steel - Case Back: Stainless Steel/Screw In - Warranty 1 Year