CASIO
CASIO G-Shock GMA-P2100ST-7A analog digital watch 200m 40.20mm beige
An analog-digital sports watch with a bio-based resin strap, 200 m water resistance and a 40.20 mm resin case
- StyleSports
- MaterialResin
- MovementQuartz
- ShapeRound
- Dial ColorBeige
- Dial MarkersIndex
- Shock-resistant build handles daily knocks
- Bio-based resin strap reduces environmental impact
- 200 m water resistance suits swimming and snorkelling
- Analog-digital display shows time and date at a glance
- 20 mm slim case fits smaller wrists comfortably
G-Shock analog-digital watch for active wear
The Casio G-Shock GMA-P2100ST-7A combines a quartz movement with a round resin case and beige dial. Its analog and digital display shows day and date information. A bio-based resin strap and buckle clasp secure the watch on the wrist. It is designed for women who want a shock-resistant sports watch for daily use.
Check strap fit and water needs before ordering
The case thickness measures 40.20 mm and the strap uses a buckle clasp, so confirm the circumference suits your wrist. The mineral crystal protects the dial, and the fixed bezel does not rotate. Water resistance is rated to 200 metres, suitable for swimming and surface water sports. No additional compatibility checks are required for this standalone timepiece.
Thermals noise and power draw in normal use
A quartz movement draws negligible power from its battery and produces no audible noise or perceptible heat. The resin case and strap remain neutral against the skin during extended wear. No active cooling or external power source is involved, so thermal and acoustic output are effectively zero in everyday conditions.
Highlights
- Shock-resistant build handles daily knocks
- Bio-based resin strap reduces environmental impact
- 200 m water resistance suits swimming and snorkelling
- Analog-digital display shows time and date at a glance
- 20 mm slim case fits smaller wrists comfortably
Specifications
| Brand | CASIO |
|---|---|
| Style | Sports |
| Material | Resin |
| Movement | Quartz |
| Shape | Round |
| Dial Color | Beige |
| Dial Markers | Index |
| Display | Analog and Digital |
| Date | Date |
| Band Material | Resin |
| Fastener | Buckle Clasp |
| Gender | Female |
| Condition | New |
| Bezel | Fixed Bezel |
| Case Material | Resin |
| Case Thickness | 40.20 mm |
| Crystal | Mineral Crystal |
| Water-Resistant | 200m |
| Special Features | Mineral Crystal,Buckle Clasp,Day and Date Display |
Questions about this item
Does the GMA-P2100ST-7A come with everything needed to wear it, or must I buy a strap separately?
The watch ships with its bio-based resin strap and buckle clasp already fitted, so no additional strap purchase is required.
How do I decide between the 200 m water resistance and the 40.20 mm case thickness for daily wear?
The 200 m rating covers swimming and surface water sports, while the 40.20 mm case keeps the profile slim enough for everyday wrists.
What does the 2100 series quartz movement actually deliver in real use?
The quartz calibre powers both analog hands and the digital display, providing date, day and shock-resistant timekeeping without battery changes for years.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



