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Black round analog-digital watch with stainless steel case and resin strap, 51mm diameter, 20ATM water resistance

CASIO

Casio Mudmaster GG-1000-1A Watch 51mm 20ATM

SKU CH-104F-116NE

Analog-digital Mudmaster with 20 ATM water resistance, stainless-steel case, resin band and quartz movement

  • Watch movementQuartz
  • Product shapeRound
  • Watch face colorBlack
  • Dial markingsIndex With Numbers At 12, 3, 6 & 9 O'Clock
  • Display typeAnalog Digital
  • Date displayDate
  • Water resistant to 20 ATM and 200 metres
  • Scratch-resistant mineral crystal protects the dial
  • Quartz movement keeps accurate time without winding
  • 51 mm stainless-steel case resists mud and shock
  • Resin strap with buckle adjusts to fit

Casio Mudmaster 51mm Quartz Watch

This Casio Mudmaster GG-1000-1A is a new quartz watch with a 51mm stainless steel case and black resin band. It combines analog hands with a digital display and includes a date window. Water resistance is rated to 20 ATM, 200 metres, or 660 feet. The mineral crystal is scratch resistant and the band is adjustable with a buckle fastener.

Suits outdoor wear, not professional diving

The analog-digital layout and 20 ATM rating serve hikers, field workers and daily wearers who want readable time and tough construction. Buyers who require ISO-certified dive instrumentation should look elsewhere. The fashion styling and fixed bezel also make it less appropriate for buyers wanting a pure tool watch with rotating timing bezel.

20 ATM water resistance decides fit

The single specification that determines suitability is the 20 ATM water resistance, equivalent to 200 metres or 660 feet. This covers swimming, snorkelling and heavy rain exposure for the intended adult male user. It does not meet the requirements for scuba diving certification standards.

How it compares

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

Price $196.99
Pricier than about 69% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameCASIO
Design styleFashion
Watch face colorBlack
Item conditionNew
Display
Display typeAnalog Digital
Size & build
Main materialStainless Steel
Size adjustmentYes
Product shapeRound
Strap materialResin
Strap length7
Strap width21
Closure typeBuckle
Bezel typeFixed Bezel
Case size51
Housing materialResin
Watch glassMineral Crystal
Environment & compliance
Water resistance200m
More details
Watch movementQuartz
AdjustabilityYes
Dial markingsIndex With Numbers At 12, 3, 6 & 9 O'Clock
Date displayDate
Suitable forMale
Age groupAdult

Questions about this item

How does 20 ATM water resistance translate to real-world depth limits?

20 ATM equals 200 meters or 660 feet, so the watch is rated for professional marine activity and serious surface water sports but not for mixed-gas diving.

What does the mineral crystal actually resist in daily wear?

The scratch-resistant mineral crystal protects the dial from common knocks and abrasions, though it is not as hard as sapphire and can still mark under sharp impact.

Will the 51 mm case and 21 mm lug width fit a 7-inch wrist without modification?

The resin strap is adjustable and resizable with a buckle fastener, and the 7-inch band length suits most adult male wrists straight from the box.

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