Casio G-SHOCK GA-2100 Analogue-Digital World Time Black Dial Resin Strap Watch (GA-2100-1A1DR)
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Description
The Casio G-SHOCK GA-2100-1A1DR is an analogue-digital men's watch with a 48.5 mm octagonal resin case, a black dial and a resin strap closed by a pin buckle.
Case & crystal
The finishing here is all in the moulding: a 48.5 mm octagonal case in resin, capped by a carbon-reinforced resin octagonal bezel carrying the G-Shock and Protection lettering. Case and strap are both resin, so the profile reads as one continuous, matte-toned form at 11.8 mm thick. The crystal is mineral.
Dial
The black dial combines an analogue display with a digital display window. A sub-dial carries the world time city indicator, the WR 20BAR marking is printed on the dial, and LED illumination lights the display in low light. The hand shift feature is also built in.
Movement
The calibre is an analogue-digital movement. It drives the date, world time, stopwatch, alarm and backlight functions, so one watch covers timekeeping across zones as well as timing and waking you at a set hour.
Bracelet & fit
The resin strap fastens with a pin buckle, which allows fine adjustment hole by hole to suit your wrist. Because the strap and case share the same material, the transition from case to strap stays clean and uninterrupted.
On the wrist
At 48.5 mm across and 11.8 mm thick, the GA-2100-1A1DR has real wrist presence and suits medium to larger wrists best. The octagonal outline sits flat and low for its size. It is a casual and sport-led watch for everyday wear, not a dress watch, and it is sold as a men's model.
Water resistance
The watch is water resistant to 200 m (20 BAR). In plain terms, it is built for swimming, snorkelling and washing off after a muddy day outdoors, although it is not a substitute for a dedicated dive instrument.
Browse more Casio watches or see all watches in our range. When the time comes, our team can arrange watch servicing and repairs. Try the GA-2100-1A1DR on at our Mall of the South and Greenstone showrooms.
Specifications
- Brand: Casio
- Collection: G-SHOCK
- Reference: GA-2100-1A1DR
- Gender: Men
- Condition: New (not pre-owned)
- Movement: Analogue-Digital
- Case material: Resin
- Case shape: Octagonal
- Case diameter: 48.5 mm
- Case thickness: 11.8 mm
- Crystal: Mineral
- Bezel: Carbon-reinforced resin octagonal bezel with G-Shock and Protection lettering
- Dial colour: Black
- Dial features: Analogue-digital display, digital display window, sub-dial with world time city indicator, WR 20BAR marking, LED illumination, hand shift feature
- Complications: Date, World Time, Stopwatch, Alarm, Backlight
- Band: Resin strap
- Clasp: Pin buckle
- Water resistance: 200 m (20 BAR)
FAQ
The octagonal resin case measures 48.5 mm across and 11.8 mm thick, so it has strong wrist presence and suits medium to larger wrists.
Yes. It is water resistant to 200 m (20 BAR), as marked on the dial, which covers swimming and snorkelling.
It shows the date and world time, and includes a stopwatch, alarm and backlight. LED illumination and a hand shift feature are also built in.
The resin strap closes with a pin buckle, so you can fine-tune the fit hole by hole. We can help with sizing in store.
Rinse the resin case and strap in fresh water and dry with a soft cloth, especially after salt water or dust.
Yes. We arrange watch servicing and repairs for Casio watches through our showrooms.
Warranty
Supplied with the 1-year international Casio warranty, valid when purchased from an authorised retailer and registered at purchase through Cassims & Co. The warranty covers manufacturing defects in materials and workmanship; it does not cover normal wear, batteries, straps, glass, or damage from misuse or water ingress through an unscrewed crown.
Our watch service centre in Johannesburg handles warranty work, batteries, bracelet sizing and servicing.
Care guide
- Rinse the resin case and strap under fresh water after swimming, particularly in the sea or a chlorinated pool.
- Dry with a soft cloth, including beneath the strap and around the pin buckle.
- Wipe the mineral crystal with a microfibre cloth and avoid abrasive surfaces, which can mark it.
- Keep the resin strap away from solvents and harsh cleaners that can dull or stiffen the material.
- Check the pin buckle and strap holes periodically for wear, especially with daily use.
- Bring the watch to us for servicing and repairs if the display, buttons or illumination stop responding normally.
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 from R1,500 (R150 under R1,500). 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 from R1,500 (R150 on orders under R1,500). 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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