a.b.art ONE41-025-1L Black Dial Black Leather Strap Bauhaus Style Business Smart Watch
Battery:button cell CR2430/13month lifetime
Compatible operating systems:IOS 8.0/Android 4.3 or above
Sensor:tri-axial gyroscope/accelerator/geomagnetic sensor
Movement:based on a ronda gear box
Crystal:domed hardened mineral
Functions:back-up-battery, chronograph, compass, luminous, photo shooting, call reminder
Water resistant to 50 meters. It means that the watch is protected against washing of a small amount of cold water but should not be immersed in water.