Casio G-SHOCK GA-100 Analogue-Digital Chronograph 51.2mm Black Dial Resin Strap Watch (GA-100-1A1DR)
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Description
The Casio G-SHOCK GA-100-1A1DR is an analogue-digital chronograph with a 51.2mm round resin case, a matte black dial and a resin strap with a buckle closure.
Case & crystal
The round case is moulded in resin and measures 51.2mm across with a case thickness of 16.9mm. The bezel is also resin, so case, bezel and strap share the same material and the profile reads as one continuous, substantial form. A mineral crystal covers the dial.
Dial
The black dial carries a matte black finish with raised hour markers for quick reading. An analogue speed sub-dial sits alongside digital sub-displays, giving the analogue-digital layout its layered look. An amber LED backlight lights the display in the dark.
Movement
This is an analogue-digital movement driving the hands and the digital displays together. The complications cover date and day-date, chronograph, stopwatch, alarm and world time, plus the backlight.
Bracelet & fit
The resin strap closes with a buckle, allowing fine adjustment through the strap holes. As the strap is resin like the case, the watch keeps a uniform, moulded appearance from lug to buckle. It is covered by the manufacturer's warranty: 1-year international Casio warranty.
On the wrist
At 51.2mm wide and 16.9mm thick, this watch has strong wrist presence and suits medium to larger wrists. It is a men's watch built for everyday wear, casual dress and active use rather than formal dress, with the multiple functions close to hand for timing and travel. You can browse more Casio watches or compare it with all watches in our range.
Water resistance
The watch is rated to 200m water resistance. In plain terms, that covers swimming, showering and water sports, so rain, splashes and time in the pool are well within its limits. For upkeep, see our watch servicing and repairs page.
Try the GA-100-1A1DR on your wrist at our Mall of the South and Greenstone showrooms.
Specifications
- Brand: Casio
- Collection: G-SHOCK
- Reference: GA-100-1A1DR
- Movement: Analogue-Digital
- Case material: Resin
- Case shape: Round
- Case diameter: 51.2mm
- Case thickness: 16.9mm
- Crystal: Mineral
- Bezel: Resin
- Dial colour: Black
- Dial features: Analogue-digital display, digital sub-displays, analogue speed sub-dial, raised hour markers, matte black finish, amber LED backlight
- Complications: Date, Day-Date, Chronograph, Stopwatch, Alarm, World Time, Backlight
- Band: Resin Strap
- Clasp: Buckle
- Water resistance: 200m
- Gender: Men
- Condition: New
FAQ
The round resin case is 51.2mm in diameter and 16.9mm thick, so it has a bold presence and suits medium to larger wrists.
It is rated to 200m, which covers swimming, showering and water sports.
It offers date, day-date, chronograph, stopwatch, alarm, world time and an amber LED backlight.
The dial is covered by a mineral crystal.
Yes, it is covered by the manufacturer's warranty: 1-year international Casio warranty.
Yes, we offer watch servicing and repairs. Speak to our team at either showroom.
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 with fresh water after swimming or heavy sweating, then dry with a soft cloth.
- Clean the resin strap and bezel with a soft brush and mild soapy water to remove dust from the textured surfaces.
- Wipe the mineral crystal with a microfibre cloth to keep the dial easy to read.
- Check the buckle and strap periodically for wear, as the 200m water resistance depends on the case remaining in good order.
- Have the watch checked through professional servicing and repairs to keep the analogue-digital movement and water resistance in good condition.
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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