Casio GBM21001A

Basic Information:

• Case Size: 48.5 x 45.4 x 11.9 mm
• Weight: 52 g
• Case and Band Material: Carbon / Resin
• Glass Type: Mineral Glass
• Water Resistance: 200 meters
• Shock Resistance: Carbon Core Guard structure
• Power Supply: Tough Solar powered
• Bluetooth Connectivity: Connects to smartphone and automatically adjusts the time

Smartphone Link/Connectivity Features:

• Smartphone Link: Yes
• Mobile Link Functions (Requires Bluetooth): Auto time adjustment, easy watch setting, world time for over 300 cities, phone finder

Exterior:

• Color: Black with brown accents

Watch Features:

• World Time: 38 time zones (38 cities + coordinated universal time), city code display, daylight saving on/off
• Stopwatch: 1/100-second; measuring capacity: 00'00"00-59'59"99 (for the first 60 minutes), 1:00'00-23:59'59 (after 60 minutes)
• Timer: Countdown range: 1 second to 24 hours
• Alarms: 5 daily alarms, hourly time signal
• Light: Double LED light (Super illuminator, selectable illumination duration, afterglow)
• Calendar: Full auto-calendar (to year 2099)