The DW-001 hit the scene in 1994, featuring the Capsule Tough design concept. Casio now introduces a new evolution of the watch driven by leading-edge technologies, featuring the Carbon Core Guard structure, a metal-clad exterior, and Smartphone Link functionality. On top of all this, the detachable urethane bezel provides a playful touch, offering the choice between two bezels ƒ?? metal or urethane. A reimagined form of Capsule Tough has arrived, maintaining the design of the original while taking on a fresh new character all its own. Case / bezel material: Carbon / Stainless steel Case / bezel material: Resin Accompanied attached bezel Resin Band Shock Resistant Carbon Core Guard structure Mineral Glass 200-meter water resistance LED backlight (Super Illuminator) Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow LED: White Mobile link (Wireless linking using Bluetooth®) World time 38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping 1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes)1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes)1 second (after 60 minutes) Measuring modes: Elapsed time, split time, 1st-2nd place times Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) 5 daily alarms Hourly time signal Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/offDate/month display swapping Day display (days of the week selectable in six languages) Regular timekeeping: Hour, minute, second, pm, month, date, day Accuracy: +/-15 seconds per month (with no mobile link function) Approx. battery life: 3 years on CR2016 Size of case : 50.3 x 47 x 18.7 mm Total weight : 75 g