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Round black dial analog watch with bio-based resin strap and resin case, buckle clasp

CASIO

CASIO MQ-24B-8B Bio-Based Resin Strap Black Dial Quartz Watch

SKU CH-SMEZ-2F879

Analog quartz watch with bio-based resin strap, black dial and 34.90 mm resin case

  • Watch movementQuartz
  • Product shapeRound
  • Watch face colorBlack
  • Dial markingsNumbers
  • Display typeAnalog
  • Strap materialResin
  • Bio-based resin strap offers lightweight comfort
  • Quartz movement provides reliable timekeeping
  • Black dial with numeric markers ensures clear readability
  • 90 mm resin case suits everyday wear
  • Splash resistant protection handles daily exposure

Casio MQ-24B-8B Bio-Based Resin Watch

The Casio MQ-24B-8B is a unisex analog quartz watch built with a resin case and a bio-based resin strap. Its black dial features numeric markers for clear time reading at a glance. The watch measures 34.90 mm in thickness and uses a buckle clasp for secure fastening. It suits wearers who want a simple, lightweight daily accessory.

Upgrade from basic digital or plastic-strap watches

This model replaces entry-level digital watches or older resin-band analogues that lack a bio-based strap. The jump is worth it when you prefer an analog display with numeric markers and a more sustainable band material. Buyers who need advanced functions such as alarms, chronographs or smartphone connectivity will not find them here.

Simple strap adjustment and battery access

The resin strap can be trimmed with standard tools to fit most wrist sizes, and the buckle clasp locks with a single press. A snap-on case back allows a watchmaker to swap the coin cell without special equipment. The resin crystal resists everyday knocks but will scratch if dragged across abrasive surfaces. Splash resistance covers rain and hand-washing only; do not submerge or press buttons while wet.

How it compares

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

Price $39.99
Cheaper than about 83% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameCASIO
Design styleDress
Watch face colorBlack
Item conditionNew
Display
Display typeAnalog
Size & build
Main materialResin
Product shapeRound
Strap materialResin
Closure typeBuckle Clasp
Bezel typeFixed Bezel
Housing materialResin
Case size34.9 mm
Watch glassResin Crystal
Environment & compliance
Water resistanceSplash Resistant
More details
Watch movementQuartz
Dial markingsNumbers
Suitable forUnisex

Questions about this item

What case thickness must my wrist accommodate for the 34.90 mm resin case?

The case measures 34.90 mm thick, so ensure your wrist can fit a watch of that profile before purchase.

How do I set the time on the quartz movement, and what step do people often miss?

Pull the crown out to the setting position, turn to adjust the hands, then push the crown fully back in to restart the quartz movement.

When should I replace the bio-based resin strap or the buckle clasp?

Replace the strap if it shows cracks, stiffness or discolouration, and replace the buckle clasp if the pin no longer holds securely.

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