Model: Ref. 6900-PT80 by John Mayer Reference: DW6900JM21-7CR Functions: 1/100th Stopwatch (24 Hr.), Countdown Timer (24 Hr.), Multi-Function Alarm, Flash Alert, EL Backlight, 12/24-Hour Time Formats Dimensions: 53.2 x 50.0 x 16.3mm / 67g Crystal: Mineral glass Caseback: Stainless steel screw-back (4-screws) Dial: Grey with red and green accents Lume: Electro-luminescent backlight with Afterglow Caliber: Module 3230 Power Reserve: Two-year battery (CR2016 cell) Water Resistance: 200 meters Bracelet/Strap: Resin strap Lug Width: 25.8mm Manufactured: Japan