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Round blue metal watch with resin band, analog-digital dial, 44mm case

CASIO

CASIO G-Shock GM2100N-2A Blue Metal Covered Watch

SKU CH-WYD0-3NP27

Shock-resistant diver's watch with 200 m water resistance, analog-digital display and world time across 31 zones

  • StyleDiver's
  • MaterialStainless Steel
  • MovementQuartz: Battery
  • ColorBlue
  • ResizableYes
  • AdjustableYes
  • Shock-resistant Carbon Core Guard structure protects the module
  • 200-metre water resistance suits serious diving
  • Double LED white light illuminates both displays
  • World time covers 31 zones across 48 cities
  • 1/100-second stopwatch plus countdown timer for precise timing

Shock-Resistant Diver's Watch

The GM2100N-2A combines analogue and digital displays in a 44mm stainless-steel case with a blue dial and resin band. Its Carbon Core Guard structure protects the quartz movement from impacts, making it suitable for daily wear and aquatic sports. The watch is water-resistant to 200 metres and fits adult wrists with an adjustable buckle clasp.

Sustained Exposure to Pressure and Impact

The Carbon Core Guard structure maintains shock resistance during continuous vibration or repeated knocks rather than only single drops. Water resistance to 200 metres holds during prolonged immersion at depth, not just brief splashes. Mineral glass protects both dial faces from scratches during extended outdoor use. The CR2016 battery powers all functions for approximately three years under normal daily operation.

Limits of the 200M Rating and Quartz Timing

The 200-metre rating covers swimming and recreational diving but excludes saturation diving or helium-rich environments. Quartz accuracy drifts slightly over months, so the world-time function across 31 zones and 48 cities relies on periodic manual correction. The auto-calendar runs to 2099, after which date tracking requires a reset. Button-operation tones can be silenced for stealth, but the double LED light remains the sole illumination method in total darkness.

Highlights

  • Shock-resistant Carbon Core Guard structure protects the module
  • 200-metre water resistance suits serious diving
  • Double LED white light illuminates both displays
  • World time covers 31 zones across 48 cities
  • 1/100-second stopwatch plus countdown timer for precise timing

Specifications

BrandCASIO
Part NumberGM2100N-2A
StyleDiver's
MaterialStainless Steel
MovementQuartz: Battery
ColorBlue
ResizableYes
AdjustableYes
ShapeRound
Dial ColorBlue
Dial MarkersIndex
DisplayAnalog and Digital
DateDate
Band MaterialResin
FastenerBuckle Clasp
Gendermen
AgeAdult
ConditionNew
BezelFixed Bezel
Case Diameter44mm.
Case MaterialStainless Steel
Case Thickness44.00 mm
CrystalMineral Crystal
Water-Resistant200m
Special FeaturesMineral Crystal,Buckle Clasp,Day and Date Display

Questions about this item

How much power does the CR2016 battery draw during continuous daily use?

The CR2016 cell is rated for approximately three years of normal operation before replacement is needed.

What strap tools or extra links are required to fit the 44 mm stainless-steel case?

The resin band uses a standard buckle clasp and is adjustable on the wrist; no extra links or special tools are necessary.

Will the analog hands stay accurate when the digital module syncs with world-time cities?

Both the analog and digital displays are driven by the same quartz movement, so world-time changes update the hands and digits together.

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