G-9100R-4ER | GULFMAN
Introduction
This G-Shock Gulfman is shock and rust resistant. Features also include Tide Graph, World Time, Stopwatch, Countdown Timer and 3 multi alarms and Flash Alert.
Main Features
| 12/24 Hour Format | |
|---|---|
| Auto-Calendar | (to year 2099) |
| Countdown Timer | Other: Auto-repeat, progress beeper on/off |
| Button operation tone on/off | |
| 1/100 Sec Stopwatch | |
| Shock resistant | (G-Shock) |
| Tide Graph Display | (Tide level for specific date and time) |
| Water Resistant | 200 Metres |
| World Time | 29 time zones (48 cities), city code display, daylight saving on/off |
| Electro-luminescent backlight, Auto-light switch, | |
| Low Temperature Resistant | (-20C) |
| Moon Data function | (Moon age of the input data, Moon phase graph) |
| Multi-Function Alarm | 3 independent multi alarms (2 one-time alarms and 1 Snooze alarm) |
Technical Specifications
| Accuracy: | ±15 seconds per month |
|---|---|
| Approx. battery life: | 7 years on CR2025 |
| Countdown Timer | Other: Auto-repeat, progress beeper on/off |
| Hourly time signals | |
| Flash alert | Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarm, countdown timer progress beeper, and stopwatch auto start |
| Measuring Capacity: | 23:59~59.99"" |
| Measuring Mode: | Elapsed time, split times, 1st-2nd place times. Other: Auto start |
| Regular timekeeping | Hour, minutes, seconds, pm, month, date, day |

