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Grey G-Shock octagonal resin watch with analog-digital dial and resin strap

CASIO

CASIO G-Shock GM-2100MF-5A 200M watch

SKU CH-223Z-0SX6J

A shock-resistant analogue-digital watch with 200 m water resistance and a grey dial

  • Watch movementQuartz
  • Product shapeRound
  • Watch face colorGrey
  • Dial markingsIndex
  • Display typeAnalog Digital
  • Date displayDate
  • 200 m water resistance for serious swimming and diving
  • Quartz calibre 5611 keeps precise time without battery anxiety
  • Grey analog-digital dial shows date and day at a glance
  • Resin case and strap absorb shocks while staying light at 42 mm
  • Mineral crystal protects the face from everyday scratches

Midnight Fog Series G-Shock

The Casio GM-2100MF-5A combines analog hands with a digital readout in a 42.00 mm resin case rated to 200 metres water resistance. Quartz calibre 5611 drives the grey dial and day-date window while the matching resin strap secures with a buckle clasp.

Who this suits and who should look elsewhere

Buyers who want a tough everyday sports watch with dual analog-digital display and 200 m water resistance will find the feature set a match. Those who need a screw-down crown, ISO dive certification, solar charging or radio time-sync should consider other models.

Deciding specification — 200 m water resistance

The 200 metre rating is the single figure that defines the watch’s envelope: it covers swimming, snorkelling and surface water sports but does not qualify the piece for scuba diving.

How it compares

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

Price $174.99
Pricier than about 63% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameCASIO
Design styleSports
Watch face colorGrey
Item conditionNew
Display
Display typeAnalog Digital
Size & build
Main materialResin
Product shapeRound
Strap materialResin
Closure typeBuckle Clasp
Bezel typeFixed Bezel
Housing materialResin
Case size42 mm
Watch glassMineral Crystal
Environment & compliance
Water resistance200m
More details
Watch movementQuartz
Dial markingsIndex
Date displayDate
Suitable forMale

Questions about this item

What wrist size does the 42.00 mm resin case with buckle clasp fit?

The resin strap and buckle clasp adjust to fit most adult wrists; the 42.00 mm case sits flat without overhang.

Can the mineral crystal and 200m water resistance handle daily knocks and swimming alongside an older G-Shock?

Yes, the mineral crystal resists scratches and the 200 m rating covers swimming and surface water sports just like earlier models.

How do I confirm the caliber 5611 quartz movement is keeping time correctly after setting?

Set the analog hands and digital display to a reliable time source; both should stay in sync day to day.

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