This Casio Edifice ECB-10DB-1A9EF bluetooth oriented men's watch has a stainless steel, oval shaped case in gray. The chain is made of gray stainless steel and the bezel is black. The crystal is mineral glass, the movement is quartz, and the display is digital and analog. Functions: Bluetooth® Smart. The watch features Bluetooth® low energy technology that allows data exchange at the touch of a button to save energy. The watch connects to the smartphone wirelessly via Bluetooth® and thus offers access to numerous useful functions. Smartphone time. Super illuminator. At the touch of a button, the background is illuminated in a very special way with trendy colors. Step counter. The watch has a 3-axis step counter. The accumulated number of steps is indicated on the digital display. Universal time function. The world time function displays the current time in up to 29 different time zones. Stopwatch - 1/100 sec. - 24 hours. Accurate elapsed time measurement at the touch of a button. The fraction indicates the unit of measurement, while the time figures indicate the maximum time measurements. Lap Memory 200. Measured stop, lap and intermediate times can be stored in this memory together with the date and displayed at a later time. A data set consists of: Date, stop times, lap times and intermediate times. The memory offers space for up to 200 datasets. 5 daily alarms. The daily alarm reminds you of recurring appointments by an acoustic signal that sounds at the set time. This model is equipped with 5 independent alarms that remind you of your important appointments. Needle movement function. By pressing the button, the hands go into motion allowing a cleaner visibility on the stopwatch and/or date functions. Phone Locator. Lost your Smartphone? With the push of a button on the watch, the Smartphone will sound an alarm. Button sound on/off. If desired, it is possible to deactivate the sound of the buttons with the Mode button. Once deactivated, the watch will stop beeping when switching from one function to another. The set alarms or the countdown timer are still active after deactivating the button sound. 12/24-hour standard time display. The hours are displayed in either 12-hour or 24-hour format. Automatic calendar. Once set, the automatic calendar always displays the correct date. 2 years - 1 battery. The battery provides the watch with the necessary energy for approx. 2 years. Water resistance rating (10 bar). Perfect for free diving without equipment.