Casio G-Shock GMA-S2100BA-2A2 Analogue-Digital Light Blue Resin Watch
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- Authorised dealer
- Full manufacturer warranty
- Serviced in-house
- Secure checkout
Description
The Casio G-Shock GMA-S2100BA-2A2 brings iconic octagonal design to a refined, compact silhouette finished in a sophisticated light blue colourway. Part of the celebrated GMA-S2100 series—a slimmed-down evolution of the cult-favourite GA-2100—this analogue-digital watch combines the rugged DNA of G-Shock with a more wearable 42.9mm case diameter, making it an ideal choice for those who appreciate technical capability without overwhelming wrist presence.
Beneath the translucent resin case lies a robust quartz movement powering both analogue hands and a digital LCD display, offering instantaneous access to world time across 31 time zones, a 1/100-second stopwatch, countdown timer, and five daily alarms. Shock resistance remains central to the G-Shock philosophy, ensuring this timepiece withstands the rigours of daily wear while maintaining precise timekeeping. The monochromatic light blue execution—case, bezel, strap, and dial—creates a cohesive aesthetic that stands apart from traditional black tactical G-Shocks, appealing to collectors and style-conscious wearers alike.
At Cassims & Co., we are proud to be an authorised retailer of CASIO watches, ensuring every timepiece carries full manufacturer warranty and genuine provenance. Water-resistant to 200 metres and equipped with Super Illuminator LED backlighting, the GMA-S2100BA-2A2 is as functional as it is distinctive. Whether you're seeking a reliable daily companion or a statement piece that blends technical heritage with contemporary colour, this G-Shock delivers.
Visit us at our Mall of the South boutique in Johannesburg to experience the GMA-S2100BA-2A2 firsthand, and should you ever require assistance, our watch servicing and repairs team is always on hand to support your timepiece throughout its lifetime. Nationwide delivery is available across South Africa.
Specifications
- Reference Number: GMA-S2100BA-2A2
- Movement: Quartz analogue-digital
- Case Diameter: 42.9mm
- Case Thickness: 11.2mm
- Case Material: Resin
- Dial Colour: Light blue
- Crystal: Mineral glass
- Strap Material: Resin
- Strap Colour: Light blue
- Clasp Type: Pin buckle
- Water Resistance: 200 metres (20 bar)
- Shock Resistance: Yes
- Functions: Analogue timekeeping, digital display, world time (31 time zones, 48 cities), 1/100-second stopwatch, countdown timer, 5 daily alarms, hourly time signal, full auto-calendar, 12/24-hour format
- Illumination: Super Illuminator LED backlight (auto light switch available)
- Accuracy: ±15 seconds per month
- Battery Life: Approximately 3 years (CR1220)
- Case Back: Screw-lock
FAQ
Q: What is the case size of the GMA-S2100BA-2A2 compared to the standard GA-2100?
A: The GMA-S2100BA-2A2 features a more compact 42.9mm case diameter, making it approximately 2-3mm smaller than the GA-2100 series. This slimmer profile is designed to suit a wider range of wrist sizes while retaining the iconic octagonal case shape.
Q: Is this watch suitable for swimming and water sports?
A: Yes, with 200 metres of water resistance, the GMA-S2100BA-2A2 is fully suitable for swimming, snorkelling, and recreational water sports. However, it is not designed for saturation diving or high-impact water activities involving high-velocity water exposure.
Q: How do I access the world time function?
A: Press the lower left button to cycle through the digital display modes. World time allows you to view the current time in any of 31 time zones (48 cities) and includes daylight saving time adjustment. Refer to the instruction manual for detailed navigation.
Q: What type of battery does this watch use, and how long does it last?
A: The GMA-S2100BA-2A2 is powered by a CR1220 battery with an approximate lifespan of 3 years under normal use. Battery replacement should be carried out by an authorised service centre to maintain water resistance integrity.
Q: Can I wear this watch while playing sports or during high-impact activities?
A: Absolutely. G-Shock watches are engineered with shock resistance as a core feature, designed to withstand impacts, vibrations, and the rigours of athletic activity. The GMA-S2100BA-2A2 is an excellent choice for active lifestyles.
Q: Does the light blue colour fade over time?
A: The resin material used in G-Shock watches is highly durable and colourfast. While prolonged exposure to UV light and harsh chemicals may cause minor discolouration over many years, normal wear will not affect the integrity or appearance of the light blue finish.
Q: Is this watch unisex?
A: Yes, the GMA-S2100BA-2A2 is designed as a unisex model. Its mid-size 42.9mm case and sleek aesthetic make it suitable for all wrist sizes and gender expressions.
Warranty
- This watch is covered by a 1-year international Casio warranty from the date of purchase.
- The warranty is valid only when the watch is purchased from an authorised Casio retailer, such as Cassims & Co.
- The warranty covers manufacturing defects in materials and workmanship under normal use conditions.
- The warranty does not cover normal wear and tear, battery replacement, scratches, cosmetic damage, or damage resulting from accidents, misuse, or unauthorised repairs.
- Water damage caused by improper use (e.g. operating buttons underwater, failure to properly secure the crown or case back) is not covered.
- To claim warranty service, present your original proof of purchase and contact an authorised Casio service centre.
- Cassims & Co. can assist with warranty claims and direct you to the appropriate service provider.
Care guide
- Rinse the watch with fresh water after exposure to saltwater, chlorine, or sweat to prevent residue buildup on the resin case and strap.
- Avoid exposing the watch to extreme temperatures, direct sunlight for prolonged periods, or harsh chemicals such as solvents, detergents, and cosmetics, which may degrade the resin material.
- Do not operate the buttons while the watch is wet or submerged, as this may compromise water resistance.
- When replacing the battery, always use an authorised Casio service centre to ensure proper resealing and water resistance testing.
- Store the watch in a cool, dry place away from magnetic fields and direct sunlight when not in use.
- Clean the resin strap periodically with a soft, damp cloth to remove dirt and oils. For stubborn marks, use mild soap and water, then dry thoroughly.
- Avoid exposing the watch to strong impacts beyond normal G-Shock shock resistance parameters, such as dropping from significant heights onto hard surfaces.
- Check the buckle and strap regularly for signs of wear, and replace if necessary to ensure secure fitting.
Why buy from Cassims & Co.?
Authorised. Authentic. Serviced here.
Authorised retailer
Every watch we sell comes from the brand or its official South African distributor, with the manufacturer's warranty registered to you. No grey imports, no parallel stock.
Set up before it leaves
Bracelet sized to your wrist, date and time set, warranty card stamped, in store or before dispatch.
In-house watchmakers
Battery changes, bracelet links, pressure tests and full services at our own Johannesburg service centre, so your warranty service never leaves the city.
Price-beat promise
Find the identical model in stock at a lower listed price from another authorised SA retailer and we'll match it.
Nationwide delivery
Tracked courier anywhere in South Africa, free over R3,000. Or collect at Mall of the South or Greenstone.
Delivery & returns
Tracked courier delivery across South Africa in 1–3 working days; free on orders over R3,000. Collect in store at Mall of the South or Greenstone Shopping Centre at no charge.
See our shipping policy and refund policy for full details.
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