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CASIO

CASIO B640WD-1AVDF 50M Quartz Digital Resin Watch

SKU CH-NSZ0-CWSS2

Quartz digital watch with resin case, stainless-steel bracelet, LED backlight and 50 m water resistance

  • StyleCasual
  • MaterialResin
  • MovementQuartz
  • ShapeTonneau
  • DisplayDigital
  • DateDate
  • 50 m water resistance for daily splashes and swimming
  • Quartz movement keeps accurate time with minimal maintenance
  • LED backlight with afterglow lets you read the display in darkness
  • Resin case and crystal stay light and comfortable on the wrist
  • Stainless steel bracelet with deployment clasp secures the watch firmly

Everyday digital watch for casual wear

The Casio B640WD-1AVDF combines a resin tonneau case with a stainless steel bracelet and a quartz movement. Its digital display shows the day and date, while an LED backlight with afterglow keeps the face readable in low light. Water resistance is rated to 50 metres for everyday splashes and brief immersion.

Suits buyers wanting a simple unisex timepiece

Shoppers who prefer a purely resin strap, a larger case diameter, or a watch with stopwatch, alarm, or world-time functions should consider other models. The fixed bezel and deployment clasp give a classic look but do not rotate for timing tasks.

Runs on a quartz module for steady long-term

The movement maintains consistent accuracy over months without the drift seen in mechanical watches. Battery life spans multiple years under normal use, and the resin crystal resists daily scratches while the 35.00 mm case thickness keeps the profile slim on the wrist.

Highlights

  • 50 m water resistance for daily splashes and swimming
  • Quartz movement keeps accurate time with minimal maintenance
  • LED backlight with afterglow lets you read the display in darkness
  • Resin case and crystal stay light and comfortable on the wrist
  • Stainless steel bracelet with deployment clasp secures the watch firmly

Specifications

BrandCASIO
StyleCasual
MaterialResin
MovementQuartz
ShapeTonneau
DisplayDigital
DateDate
Band MaterialStainless Steel
FastenerDeployment Clasp
GenderUnisex
ConditionNew
BezelFixed Bezel
Case MaterialResin
Case Thickness35.00 mm
CrystalResin Crystal
Water-Resistant50m
Special FeaturesResin Crystal,Deployment Clasp,Day and Date Display

Questions about this item

Does this watch require any tools to adjust the stainless steel bracelet with the deployment clasp?

The stainless steel bracelet uses a deployment clasp, so no tools are needed to fasten or release it; links can be added or removed by a watchmaker if the fit needs changing.

Will the 50 m water-resistance rating survive daily hand-washing and rain with the resin case and crystal?

Yes, 50 m water resistance covers splashes, rain and hand-washing; avoid pressing buttons underwater and rinse with fresh water after salt exposure.

How can I confirm the quartz movement and LED backlight with afterglow are functioning correctly after I put the watch on?

Check that the digital display shows the correct time and date, then press the light button in a dark room — the face should illuminate and fade gently when released.

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