Additional Information

Manufacturer	Casio
Model Number	DW6900HM-1
Gender	Mens
Display	Multifunction Multifunction A multifunction watch features multi sub-dials with various features; from sub-seconds dials to tide graphs.
Movement	Quartz Quartz A quartz movement, usually the most accurate type of movement, uses a battery for its power source.
Crystal	Mineral Mineral Hardened crystal or glass that gives a protective barrier. There are multiple variations but most are scratch resistant and durable.
Case Material	Resin
Case Color	Black
Case Diameter	51mm Case Diameter The full width of the watch case, all the way across from left to right. General sizing: < 20mm: A small, women's sized watch. 21mm - 30mm: A women's or small unisex sized watch. 31mm - 40mm: A large women's or unized sized watch. < 40mm: A large men's or unisex sized watch.
Case Thickness	16.3mm
Band Color	Black
Band Type	Rubber Strap
Dial Color	Silver
Warranty	One-year
Water Resistance	200m Water Resistance 200m water resistance means this watch is suitable for diving, but not deep sea use.

• Shock Resistant
• 200 Meter Water Resistant
• EL Backlight with Afterglow
• Multi-function Alarm
• Hourly Time Signal
• Flash Alert
• Flashes with buzzer that sounds for alarm, hourly time signal, countdown timer time-up alarm
• 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)
• Other: Auto-repeat
• Full auto-calendar (pre-programmed until the year 2099)
• 12/24 Hour Formats
• Accuracy: +/- 15 seconds per month
• Battery: CR2016
• Approx. battery life: 2 years
• Module 3230

Casio watches are well known for the wide variety and innovation of its wristwatches. It was one of the earliest manufacturers of quartz crystal watches, both digital and analog. Casio was one of the first manufacturers of watches that could display the time in many different time zones and of watches with temperature, atmospheric-pressure, altitude, and even GPS position displays.