Casio G-Shock GBA-900-1AER analogue-digital black Watch
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- 100% secure payment
- Free returns in store
- With a 3 year warranty
- Free shipping on orders over €75
- Payment in installments available
- Do you have any questions? Contact us
- Check in-store availability
Details
Details
This men's Casio watch combines functionality and style, featuring a robust resin case that enhances its modern design. The black resin strap ensures comfort and durability. Its analogue-digital dial provides a clear display of time, incorporating useful features such as five alarms and an automatic calendar. Additionally, this model includes a 12/24 hour indicator, world time function, stopwatch with hundredths of a second, and five timers. The diode light enables easy reading in low-light conditions. Powered by a battery with a lifespan of up to two years, this watch is water-resistant up to 200 metres, making it ideal for aquatic activities. The case has a diameter of 49 mm, offering a notable presence on the wrist.
Ref. GBA-900-1AER
Jewelry care
Jewelry care
To preserve the luster of your jewelry, it's recommended to avoid using cosmetics, cleaning products, and other chemical agents, and to clean it with a soft cloth. For professional cleaning, please visit one of our jewelry stores.
Exchanges and returns
Exchanges and returns
The return or withdrawal period is 15 days and the exchange period is 30 days, both from the date of delivery of the item.
Shipping and delivery
Shipping and delivery
Size guide
Don't know your ring size? We'll show you different ways to find the perfect size.
The size is the measurement of the ring's interior space.


How to measure your ring size at home: step-by-step guide
Method 1: Measuring an existing ring (inside diameter)
This is the most accurate method if you already have a reference ring. Follow these steps:
- You will need the ring and a ruler.
- Do not include the metal; the thickness is not considered for the measurement.
- Note the exact measurement in millimeters (mm) and look for this figure in our equivalence table, in the "Inside diameter" column.

Method 2: Measuring your finger (circumference)
If you don't have a reference ring, you can measure your finger's circumference. Follow these steps:
- You will need a string, a measuring tape, or a strip of paper and a ruler.
- We recommend measuring your finger at the end of the day to avoid swelling.
- Wrap the string, tape, or paper strip around the base of the finger on which you will wear the ring, note the exact measurement, and find it in our equivalence table.

Equivalence table
| Ring inside diameter (mm) | JOSE LUIS Joyerías Size |
|---|---|
| 15.2 mm | 8 |
| 15.5 mm | 9 |
| 15.9 mm | 10 |
| 16.2 mm | 11 |
| 16.5 mm | 12 |
| 16.8 mm | 13 |
| 17.1 mm | 14 |
| 17.4 mm | 15 |
| 17.8 mm | 16 |
| 18.0 mm | 17 |
| 18.4 mm | 18 |
| 18.7 mm | 19 |
| 19.0 mm | 20 |
| 19.3 mm | 21 |
| 19.6 mm | 22 |
| 20.0 mm | 23 |
| 20.3 mm | 24 |
You can also consult our customer service team for more information.