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Round carbon composite case with green dial, resin strap, analog-digital display

CASIO

CASIO G-Shock GA-B2100FC-3A Green Dial Solar Watch 200m

SKU CH-PNJ3-Y5NQ1

Solar-powered G-Shock with Bluetooth smartphone link, 200 m water resistance and a green analog-digital dial in a 45.40 mm carbon composite case

  • Watch movementSolar
  • Product shapeRound
  • Watch face colorGreen
  • Dial markingsIndex
  • Display typeAnalog Digital
  • Date displayDate
  • Solar charging keeps the watch running without battery changes
  • Carbon composite case delivers strength while staying light on the wrist
  • 200 m water resistance handles swimming and surface water sports
  • Bluetooth link syncs time and settings from a smartphone
  • Green dial with analog-digital display adds clear readability in any light

Carbon Composite Sports Watch

The GA-B2100FC-3A is a new G-Shock built for daily wear and outdoor activity. Its carbon composite case and resin strap keep weight down while meeting the brand’s shock-resistance standard. A green dial and analog-digital display give clear time reading in changing light. The 200 metre water resistance supports swimming and surface water sports.

45.40 mm Case with Fixed Bezel

The round case measures 45.40 mm thick and uses a fixed bezel that protects the mineral crystal from direct impact. A buckle clasp secures the resin band without tools, so the watch stays put during vigorous movement. Solar charging via the Tough Solar system removes the need for regular battery changes. Bluetooth smartphone link lets the watch sync time and adjust settings through a companion app.

Caliber 5689 Functions

Caliber 5689 drives the analog hands and digital sub-dials, showing month, day and date alongside the primary time. The solar cell feeds the rechargeable cell continuously under normal light, maintaining operation in low-use periods. Smartphone link also enables automatic time-zone updates and alarm management from the phone. No charging cable or proprietary dock is required.

How it compares

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

Price $131.99
Typical for this category: the median of 2,679 items is $130.99.

Specifications

Product
Brand nameCASIO
Design styleSports
Watch face colorGreen
Item conditionNew
Display
Display typeAnalog Digital
Size & build
Main materialCarbon Composite
Product shapeRound
Strap materialResin
Closure typeBuckle Clasp
Bezel typeFixed Bezel
Housing materialCarbon Composite
Case size45.4 mm
Watch glassMineral Crystal
Environment & compliance
Water resistance200m
More details
Watch movementSolar
Dial markingsIndex
Date displayDate
Suitable forMale

Questions about this item

What does the 200 m water-resistance rating actually allow?

The 200 m rating means the watch is suitable for swimming, snorkelling and recreational scuba diving, but not for deep-sea or saturation diving.

What case diameter and thickness should I check against my wrist?

The carbon-composite case measures 45.40 mm thick; the overall diameter is typical for the GA-2100 series, so compare that profile to your wrist before buying.

How do I pair the watch with the phone app, and what step do people miss?

Install the Casio Watches app, enable Bluetooth on the phone, then hold the watch's lower-left button until the Bluetooth icon flashes; the step often missed is granting the app location permission, which is required for the initial pairing handshake.

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