Watch GMA-P2100VA-7AER

The Watch

Casio keeps pushing the limits of tough, adventure-ready watchmaking. The Japanese brand is celebrated for sophisticated, resilient timepieces that win over serious watch enthusiasts. Every G-Shock is built, equipped, and rigorously tested to deliver outstanding reliability in any condition. This is the GMA-P2100SG-1AER watch, designed to grace the wrists of bold women. Its octagonal case weighs 40 g and features a white resin construction for long-lasting durability. It measures 40.20 mm in width, 11.20 mm in thickness, and 46 mm in length. A white bio-resin bezel engraved with function indicators surrounds the mineral glass crystal protecting the dial. Two pushers on each side allow easy access to all features. The watch is sealed by a screw-back case back providing water resistance to 20 ATM.

The Dial

This dial delivers precise, everyday timekeeping. It features a sunray and sandblasted gray finish that creates a sleek metallic effect. It comes with a Super Illuminator LED backlight with a selectable duration of 1.5 or 3 seconds. At the center, two silver-tone hands indicate the hours with the short hand and the minutes with the long hand, both treated with Neobrite for improved legibility in low-light conditions. Together they sweep along the minute track at the edge and the gray hour markers. This analog display is complemented by a digital display at 3 o'clock. Also equipped with an LED backlight, it shows the hours, minutes, and seconds of the second time zone, plus functions for the alarm, button tone, and hourly signal. It also displays the date and day of the week, along with other settings you can customize to your liking. At 9 o'clock, the water resistance rating is displayed, while near 12 o'clock, the brand signs the dial with the collection name.

Functions

World Time
World time
31 time zones (48 cities + Coordinated Universal Time)
Daylight Saving Time on/off

Stopwatch
1/100-second stopwatch
Measuring capacity: 00'00''00~59'59''99 (during the first 60 minutes)
1:00'00~23:59'59 (after 60 minutes)
Measuring unit: 1/100 second (during the first 60 minutes)
1 second (after 60 minutes)
Measuring modes: Elapsed time, split time, 1st and 2nd place times

Timer (Countdown)
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (in 1-second, 1-minute, and 1-hour increments)

Alarm/Hourly Signal
5 daily alarms
Hourly signal

Calendar
Full automatic calendar (until the year 2099)

Mute Function
Button tone on/off

Other Functions
12/24-hour format
Hand masking function (for a clear view of the digital display content)
Standard time indication:
Analog: 2 hands (hour, minute (hand moves every 20 seconds))
Digital: Hour, minute, second, 12-hour format, month, date, day

The Movement

This wall clock model is equipped with a robust and reliable quartz movement, manufactured in-house and accurate to ±15 seconds per month. It runs on a CR1025 battery, delivering approximately 3 years of battery life.

The Strap

Sleek and eye-catching, this strap offers all-day wearing comfort. Crafted from bio-resin - a sturdy yet flexible and comfortable material - it holds up to any physical or sporting activity. Its white tone pairs effortlessly with all your accessories. Compatible with wrist sizes from 145 to 190 mm, it fastens easily with a pin buckle.

Water Resistance

With water resistance to 20 atmospheres - that's 200 meters - this watch earns the title of dive watch without hesitation. Our watchmaking experts agree: it handles showers, baths, lap swimming, freediving, and recreational scuba with ease. That said, it's not built for extreme deep-sea diving, where pressure at depth would eventually compromise its seal. For professional divers pushing serious depth records, we recommend models rated 30 ATM or higher. Also, avoid operating the pushers or crown while submerged to maintain a perfect seal.