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Compact black bio-based resin watch with round analog-digital face, matte finish, 46.2 x 40.2 mm case, mineral crystal, buckle clasp

CASIO

CASIO G-Shock GMA-P2100BB-1A Women's Watch

SKU CH-WTZA-477TZ

A compact shock-resistant analog-digital watch with bio-based resin case and strap, 200 m water resistance, world time for 48 cities, stopwatch, countdown timer.

  • Watch movementQuartz
  • Product shapeRound
  • Watch face colorBlack
  • Dial markingsIndex
  • Display typeAnalog and Digital
  • Date displayDate
  • Bio-based resin reduces environmental impact
  • Compact 46.2 x 40.2 mm case fits smaller wrists comfortably
  • Shock resistant construction withstands daily impacts
  • 200 m water resistance suits swimming and diving
  • Double LED Super Illuminator ensures readability in darkness

Compact Bio-Based Resin Design

The GMA-P2100BB-1A is a slim analog-digital G-Shock built for smaller wrists. Its case measures 46.2 x 40.2 mm with a thickness of 40.20 mm. The bezel and strap use bio-based resin sourced from renewable organic resources. A fixed bezel and mineral crystal complete the durable, all-black matte finish.

Quartz Movement Practical Limits

Quartz movement keeps time without winding but requires a battery change every few years. The module supports 12 and 24 hour formats plus a full auto-calendar pre-programmed until 2099. World time covers 31 zones across 48 cities with UTC offset. No radio-controlled or Bluetooth sync is included, so manual adjustment is needed for daylight-saving changes.

200M Water Resistance and Function Headroom

Rated to 200 m, the watch handles swimming, snorkelling and surface water sports comfortably. Shock-resistant construction absorbs daily impacts. The double LED Super Illuminator lights both analog and digital areas. Timing features include a 1/100-second stopwatch, countdown timer and 5 daily alarms with hourly signal. Buyers needing dive-log memory, GPS tracking or smart notifications will find those functions absent.

How it compares

Measured against everything we stock in Analog & Digital Wristwatches, at today’s prices. Recalculated every night.

Price $97.99
Cheaper than about 59% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameCASIO
Design styleSports
Watch face colorBlack
Item conditionNew
Display
Display typeAnalog and Digital
Size & build
Main materialResin
Product shapeRound
Strap materialResin
Closure typeBuckle Clasp
Bezel typeFixed Bezel
Housing materialResin
Case size40.2 mm
Watch glassMineral Crystal
Environment & compliance
Water resistance200m
More details
Watch movementQuartz
Dial markingsIndex
Date displayDate
Suitable forFemale
Age groupAdult

Questions about this item

Should I pick the analog-digital version or a purely digital G-Shock for everyday wear?

This model combines analog hands with a digital display, giving you both traditional readability and quick access to stopwatch, timer, alarms and world time functions in one compact case.

What does 200 m water resistance actually let me do?

The 200 m rating means the watch is suitable for swimming, snorkelling and surface water sports, but not for scuba diving.

Does the mineral crystal scratch easily compared with sapphire?

Mineral crystal is harder than acrylic and resists everyday knocks, though it can still scratch if rubbed against abrasive surfaces.

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