The Casio GBM-2100-1A is built around a resin case and a black dial.
Case and Wrist Presence
The case is worked in resin.
Reading the Dial
A black dial sits behind the crystal.
Movement and Functions
A quartz digital movement drives the watch.
- Water resistance – 20 ATM (200 metres)
Strap, Clasp and Fit
The strap is resin.
Water Resistance and Everyday Durability
The watch is rated to 20 ATM, or 200 metres of static pressure. In practical terms that covers rain, hand washing, showering and recreational swimming. It is not a dive watch, so leave it behind for scuba diving and keep it away from high-pressure water jets. Make sure the crown is fully seated before any contact with water.
Who This Watch Suits
- Building a black-led accessory wardrobe
- Daily wear that includes rain, washing up and the occasional swim
- Gift buyers looking for something recognisable, boxed and properly warranted
Styling Notes
Black is the easiest colour to place. It disappears into formal dressing and sharpens casual dressing, and it never fights whatever else you are wearing.
Care and Maintenance
A watch at this level rewards very little maintenance, but the little it asks for makes the difference between one that still looks sharp in five years and one that does not. Rinse the case in fresh water after a swim, especially in the sea, and dry it before it goes back on. Store it away from magnets and out of direct heat, and it will hold its rate and its finish.
About the Brand and Ownership
Casio watches sit in the sweet spot between fashion and function: recognisable design, real build quality, and a price that does not ask you to think of the watch as an investment. Basic care goes a long way – keep it clear of solvents and perfume, rinse the strap if it has been in salt water, and store it somewhere dry.
Technical Specifications
| Attribute | Specification |
|---|---|
| Brand | Casio |
| Model / Reference | GBM-2100-1A |
| Gender | Men’s |
| EAN | 4549526377808 |
| Case Material | Resin |
| Dial Colour | Black |
| Movement | Quartz digital |
| Strap / Bracelet | Resin |
| Water Resistance | 20 ATM / 200 metres |
| Warranty | 24 months |
Buying With Confidence
Buying a watch online comes down to trusting the seller, so here is exactly what you get. The watch ships new and unworn in its original box with the manufacturer’s paperwork, and it is covered by the full international warranty from the date you receive it – not from the date it landed in our warehouse. We ship nationwide with tracking, and someone actually answers the phone if something goes wrong.
Under the Consumer Protection Act you have the right to return an unworn watch in its original packaging, and a manufacturing defect inside the warranty period is repaired or replaced at no cost to you.
Authenticity, Warranty and Delivery
Every Casio watch we list is sourced new and unworn through authorised distribution and arrives in its original presentation box with the manufacturer’s documentation. This reference carries a 24-month international manufacturer warranty covering the movement, excluding the battery and normal wear to the finish and strap. Delivered anywhere in South Africa.
The black dial is the thing people will comment on. Everything about it is built to be worn, not admired in a drawer.




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