G-Shock Module 4778

Brand	Casio G-Shock
Caliber Number	Module 4778
Movement Type	Quartz
Display	Analog/Digital (ana-digi)
Screen Type	LCD
Battery Number	CR1220
Battery Life	~3 years
Jewels	0
Accuracy	+/-15 seconds per month
Alarm?	Yes
Backlight Illumination?	Yes
Chronograph?	Yes
Perpetual Calendar?	Yes
Hand Count	2
Button Count	4
Functions	World time with 29 time zones; stopwatch/chronograph; countdown timer; amber LED light; full calendar until 2039; 12 or 24 hour time display; 5 daily alarms; hourly chime; daylight savings time mode
Country of Manufacture	Japan
Series	AW590
Known Models	AW-590-1A, AW-591BB-1A, AW-591-2A, AW-591-2A, AW-519MS-1A, AW-519CL-1A, AW-519MTM-1A, AW-590BL-5A (Add your watch to the comments below…)

The Casio G-Shock caliber 4778 is a multi-functional analog/digital quartz movement found in the AW-590 series released in 2007.

Analog Hands:

The 4778 has an hour and minute hand, both are quipped with Neobrite lume. The minute hand moves forward every 20 seconds. Watch this video to learn how to set the analog hands on your watch.

Additional Resources:

• Official Casio 4778 Operation Guide (pdf)
• List of G-Shock Modules