Additional Information

Manufacturer	Casio
Model Number	BLX100-1B
Gender	Womens
Display	Digital Digital A digital watch features an LED or LCD display, where time is kept with a Quartz Movement.
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	42.3mm 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	12.5mm
Band Width	22.4mm
Band Color	Black
Band Type	Rubber Strap
Dial Color	Purple
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
• 200M Water Resistant
• EL Backlight with Afterglow
• Tide Graph (tide level for specific date and time)
• World Time
• 29 time zones (48 cities), city code display, daylight saving on/off
• 2 Multi-function Alarms and 1 Snooze Alarm
• Hourly Time Signal
• 1/100 second stopwatch
• Measuring capacity: 23:59’59.99”
• Measuring modes: Elapsed time, split time, 1st-2nd place times
• Other: 5-second Auto-start
• Countdown Timer
• Measuring Unit: 1 Second
• Measuring Capacity: 24 Hours
• Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
• Others: Auto-repeat, time up alarm, progress beeper on/off
• Full Auto Calendar (pre-programmed until the year 2099)
• 12/24 Hour Formats
• Button Operation Tone On/Off
• Accuracy: +/- 30 seconds per month
• Battery: CR1616
• Approx. Battery Life: 3 years
• Module 3265

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.