This Casio Timeless Collection WS-B1000-1AVEF oriented watch for men, has a black octagonal resin case. The strap is made of black resin. The crystal is made of glass resin, the quartz movement has two years of duration and the digital display. Water resistance: 10 ATM. Diameter: 46.2 mm. Weight: 36 gr. Functions: Bluetooth: connects to a smartphone and automatically adjusts the time.Step count measurement: Step count display range: from 0 to 999 999 999 steps Step goal progress display (step count goal setting range: between 1000 and 50 000 in increments of 1000 steps) Step reminder （Informs you if the step count is too low by visual and audible indication）. Step count graph（Step count per hour for the last 7 hours in a 6-level graph). Step indicator.Mobile Link (Bluetooth wireless link). Automatic time setting. Easy clock setting. World time for approximately 300 cities. Life log data management. Stopwatch data transfer. Time and place. Phone finder. Dual time (local time change).1/100 second stopwatch Measurement capability: 00'00"00~59'59"99 (during the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measurement unit: 1/100 second (during the first 60 minutes) 1 second (after 60 minutes) Measurement modes: Elapsed time, lap time and time fractions Recorded data: up to 200 records (measurement start year, month, date, date, hour, minutes, lap/fraction times).Countdown timer Unit of measurement: 1 second Countdown interval: 60 minutes Countdown start time setting range: Between 1 second and 60 minutes (1 second and 1 minute increments). 5 daily alarms. Time signal. LED backlight Selectable illumination duration (1.5 or 3 seconds), brightness. LED: Amber. Full automatic calendar (up to the year 2099). Button press tone on/off. Power saving on/off. Accuracy: ±15 seconds per month (without Mobile Link function). 12 and 24 hour format. Standard time display: hour, minute, second, p.m., year, month, date and day. Three year warranty. Enjoy your Casio Collection watch.