Casio
Casio G-Shock GMA-P2100SR-1AER (add gtin)

Product Information
Overview
A compact G-SHOCK with a transparent case and polarized glass gets a significantly more playful expression than the usual black 2100 series. The Casio GMA-P2100 has the well-known angular shape, but in a smaller format of 46 × 40.2 × 11.2 mm. The glass shifts in color depending on the angle, while the shock-resistant construction and 20 ATM water resistance keep the model clearly anchored in the G-SHOCK world.
Comfort
Weighing 40 grams, the GMA-P2100 is light for a G-SHOCK with both analog and digital displays. The compact case fits smaller wrists better than many larger models in the series, and the resin strap fits wrists from 145 to 190 mm. The thickness of 11.2 mm makes the watch feel sleek, while maintaining the robust feel that many want from a G-SHOCK.
Why choose the Casio GMA-P2100SR-1AER
This model is suitable for those who like the durability of G-SHOCK but want something smaller, brighter, and more fashion-oriented than the standard models. You get world time with 31 time zones, 1/100-second stopwatch, 24-hour timer, five daily alarms, and dual LED illumination. The hand shift function is also practical, as the hands can be moved aside when you need to read the digital display more clearly.
See more Casio watches
Measurements & Material
- Strap material
- Resin
- Diameter
- 40 mm
- Width of bracelet
- 20 mm
- Thickness
- 11 mm
- Glass
- Mineral
- Clockwork
- Quartz
Design & Style
- Case color
- Grey
- Color of strap
- Grey
- Dial color
- Green
- Style
- Sport-Dress
- Target group
- Men’s
- Water protection (ATM)
- 20
- Trademark
- Casio
Technical details
- Daily alarm
- 5 st
- Weight
- 40 g
- Features
- Date
- Day display
- Countdown timer
- Stopwatch
- World timer
- Luminous hands
Delivery
For some products, the delivery time is 1–2 business days. Orders placed before 3:30 PM on weekdays are usually shipped the same day and delivered the next business day, depending on your location in the country. For other products, the estimated delivery time is 3–6 business days.
Returns
We want you to feel completely confident when shopping with us. That's why we offer a 30-day right of return from the day you receive your order. If you change your mind about your purchase or if the watch doesn't meet your expectations, you can easily return it for an exchange or refund. For returns, you will conveniently receive a QR code to use for the return process. Read more about the terms and conditions here.
All watches at Kronura come with a minimum 2-year warranty.
What if the watch stops working?
When you shop at Kronura, you can feel secure – we handle the entire warranty process from start to finish. Should anything unexpected happen to your watch during the warranty period, you only need to contact us, and we will take care of the rest.
1. Contact us via email at (Support@kronura.se). Describe the fault as clearly as possible and attach images if possible.
2. Wait for a response from our customer service team, who will get back to you within 1–2 business days with further instructions.
3. We manage the process – Kronura arranges for the watch to be sent to the brand's authorized service center.
4. Resolution and feedback – you will be notified by us when the matter is resolved and the watch has been repaired, replaced, or rectified according to the warranty terms.
Do you need help? We're here for you.
Please contact us if you have questions about:
- Your order
- Products and availability
- Delivery or returns
- Warranty and complaints
- Care and maintenance of your watch
Frequently asked questions
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When your order ships, you will receive a tracking number via email. Delivery is made with Postnord and can be tracked directly on their website.
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We have a watch guide on our website that helps you choose the right size based on your wrist size and personal style.
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Yes, we offer installment payments via Klarna, allowing you to pay at your own pace and feel secure throughout the entire purchase.

