G-Shock GW-1800DJ-1A9 User Manual
Page 65
E-64
Specifications
Accuracy at normal temperature: ± 15 seconds a month (with no signal calibration)
Digital Timekeeping: Hour, minutes, seconds, p.m., month, day, day of the week
Time system: Switchable between 12-hour and 24-hour formats
Calendar system: Full Auto-calendar pre-programmed from the year
2000 to 2099
Other: Home city code (can be assigned one of 48 city codes); Daylight
Saving Time (summer time)/Standard Time
Time Calibration Signal Reception: Auto receive up to six times a day (Remaining
auto receives cancelled as soon as one is successful); Manual receive
Receivable Time Calibration Signals: Fort Collins, Colorado, the United States
(Call Sign: WWVB, Frequency: 60.0 kHz); Fukushima, Japan (Call Sign:
JJY, Frequency: 40.0 kHz); Fukuoka/Saga, Japan (Call Sign: JJY,
Frequency: 60.0 kHz)
Analog Timekeeping: Hour, minutes (hand moves every 20 seconds)
World Time: 48 cities (29 time zones)
Other: Standard Time/Daylight Saving Time (summer time)
Alarms: Daily alarms; Hourly Time Signal