CASIO G-SHOCK GA-900A-1A9DR GA-900 SERIES ANALOG-DIGITAL YELLOW MEN WATCH
GA-900A-1A9DR
- Low stock - 1 item left
- Backordered, shipping soon
- 1 Year Warranty
The G-SHOCK GA-900A-1A9DR wears its construction on the outside. A ten-sided bezel shaped like a nut and fixed with visible screws gives it a machined, industrial look, and the non-slip checkering runs across the lug ends, the band and the buttons โ including the front button โ so it stays operable with wet or gloved hands. The black case is paired with a yellow resin band.
Inside, two analog hands sit over a digital display, and the hands shift aside on demand so nothing obscures the readout. It carries shock-resistant construction and 200-metre water resistance at 65 grams, and the real headline is the power: approximately seven years on a single battery.
At a Glance
- BrandCasio G-SHOCK
- SeriesGA-900
- ModelGA-900A-1A9DR
- Module5637
- Case Size52.8 ร 49.5 ร 16.9 mm
- Weight65g
- ColourBlack with Yellow Band
- DisplayAnalog-Digital, 2 Hands
- Bezel10-Sided, Screw-Fixed
- ConstructionShock Resistant
- Water Resistance200m (20 BAR)
- Battery LifeApprox. 7 Years
Technical Specifications
The Casio G-SHOCK GA-900A-1A9DR is an analog-digital watch on module 5637 from the GA-900 series, with a resin case and a ten-sided screw-fixed bezel, built to shock-resistant construction. The case measures 52.8 ร 49.5 ร 16.9mm and weighs 65 grams, with mineral glass and a yellow resin band, rated to 200 metres of water resistance. Two analog hands sit over a digital display and shift aside on demand to clear it, with a 31-zone world time covering 48 cities, a 1/100-second stopwatch, a 60-minute countdown timer, five daily alarms, a full auto-calendar to 2099 and a white Super Illuminator LED. Accuracy is ยฑ15 seconds per month and battery life is approximately seven years on a CR2016 cell.
| Model Number | GA-900A-1A9DR |
| Case & Bezel Material | Resin |
| Bezel Design | 10-Sided, Fixed with Screws |
| Construction | Shock Resistant |
| Case Size (L ร W ร H) | 52.8 ร 49.5 ร 16.9 mm |
| Weight | 65g |
| Glass | Mineral |
| Water Resistance | 200 Metres (20 BAR) |
| Grip | Non-Slip Checkering on Lug Ends, Band and Buttons |
| Display Type | Analog-Digital |
| Hands | 2 Hands (Hour, Minute) |
| Minute Hand | Advances Every 20 Seconds |
| Hand Shift | Yes โ Hands Move Clear of the Display |
| Digital Display | Hour, Minute, Second, PM, Month, Date, Day |
| Backlight | LED Super Illuminator with Afterglow |
| Backlight Colour | White |
| Backlight Duration | Selectable 1.5 or 3 Seconds |
| World Time | 31 Time Zones (48 Cities + UTC), Daylight Saving On/Off |
| World Time Extras | Home / World City Swap, One-Touch UTC |
| Stopwatch | 1/100 Second, 23:59'59.99" Capacity, Elapsed / Split / 1st-2nd Place, Target Time Alarm |
| Countdown Timer | 1/10-Second Units, 1 to 60 Minutes |
| Alarms | 5 Daily Alarms (1 with Snooze), Hourly Time Signal |
| Calendar | Full Auto-Calendar to 2099 |
| Other | 12/24-Hour Format, Button Operation Tone On/Off |
| Band Material | Resin, Yellow |
| Accuracy | ยฑ15 Seconds Per Month |
| Battery | CR2016 |
| Battery Life | Approx. 7 Years |
Frequently Asked Questions
Seven years on one battery โ is that right?
Yes. Casio rates the CR2016 cell at approximately seven years in this module, which is unusually long for a watch with a backlight, alarms and a stopwatch. Heavy use of the LED will shorten it, but it is a watch you can expect to wear for years before thinking about a battery.
What does the hand shift function do?
The two analog hands move clear of the digital display on demand, so nothing sits over the readout when you are reading world time, the stopwatch or the timer. On an analog-digital watch that is the difference between glancing at a figure and tilting your wrist to find it.
Why does the minute hand move in steps?
The minute hand advances every 20 seconds rather than sweeping continuously. This is normal for module 5637 and conserves battery โ part of how it reaches a seven-year life. Timekeeping accuracy is unaffected at ยฑ15 seconds per month, and the digital display shows running seconds.
Can I swim or dive with it?
You can swim and snorkel with it. 200-metre (20 BAR) water resistance covers swimming, surfing and recreational water sports. It is not rated for saturation diving or use with helium-based gas mixtures. Avoid operating the buttons while the watch is submerged.
Is 52.8mm too large for my wrist?
It is a large watch โ 52.8 ร 49.5mm and 16.9mm thick. Casio does not publish a compatible band size for this model, so we cannot quote a range. At 65 grams it is far lighter than the dimensions suggest, but the footprint is substantial and will sit high under a close-fitting cuff. Worth trying on if you are unsure.
What is the checkering on the band and buttons for?
Grip. The textured pattern on the lug ends, band and buttons โ including the front button โ is there so the watch can be operated with wet hands or gloves, which is the situation a 200-metre G-SHOCK is built for.
What warranty does this watch come with?
The GA-900A-1A9DR comes with Casio's official 1-year warranty when purchased from City Chain Singapore, an authorised Casio retailer.
Why Buy from City Chain Singapore
- Authorised Retailer Official Casio warranty
- 100% Authentic Genuine Casio product
- Free Shipping All orders within Singapore
Case / bezel material: Resin
Resin Band
Shock Resistant
Mineral Glass
200-meter water resistance
LED light (Super Illuminator)
Selectable illumination duration (1.5 seconds or 3 seconds), afterglow
Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping, One-touch UTC Time Zone Access
1/100-second stopwatch
Measuring capacity: 23:59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times
Others: target time alarm, direct timing start from the timekeeping mode
Countdown timer
Measuring unit: 1/10 second
Countdown range: 60 minutes
Countdown start time setting range: 1 to 60 minutes (1-minute increments)
5 daily alarms (with 1 snooze alarm)
Hourly time signal
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Regular timekeeping: Hour, minute, second, pm, month, date, day
Accuracy: ยฑ15 seconds per month
Approx. battery life: 7 years on CR2016
Size of Case: 52.8ร49.5ร16.9 mm
Total Weight: 65 g
Delivery within Singapore | Order by 11AM
(Checkout options may vary depending on minimum order requirements)
โข Free Standard Delivery (3 business days)
โข Free Next Day Delivery
โข Express Delivery at $30 (order by 2PM)
โข Click & Collect (ready in 2โ3 business days)
Weekend & Public Holiday Orders
Orders placed during this time will be processed on the next business day.
