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Blue resin digital watch with square case and matching strap

CASIO

CASIO F-91WS-2 Blue Resin Digital Watch

SKU CH-W9KQ-W7Y89

A lightweight unisex digital watch with resin case, strap and crystal, offering a 1/100 second stopwatch, daily alarm, LED light and splash resistance

  • Watch movementQuartz
  • Product shapeSquare
  • Display typeDigital
  • Date displayDate
  • Strap materialResin
  • Closure typeBuckle Clasp
  • Precise 1/100-second stopwatch times every interval
  • Daily alarm keeps schedules on track
  • LED light illuminates the display in darkness
  • Resin case, strap and crystal resist daily knocks
  • Splash-resistant build handles rain and hand-washing

Blue resin digital watch for everyday timing

The Casio F-91WS-2 is a unisex quartz watch with a square resin case and matching strap. Its digital display shows the time, day and date at a glance. A built-in LED light makes the screen readable in low light. The watch is splash resistant for daily hand-washing or rain.

Fits any wrist without tools or extra parts

The 38.00 mm resin case sits flat against the wrist and fastens with a simple buckle clasp. No spring bars, link removal or proprietary adapters are required. The lightweight resin construction keeps the profile thin so it slides under shirt cuffs. Quartz movement means no winding or charging routine.

Stopwatch and alarm handle short intervals

A 1/100 second stopwatch measures laps or intervals up to 100 minutes. The daily alarm sounds once at the set time for reminders or wake-ups. Both functions are controlled through the three side buttons without a companion app. Resin crystal protects the display from everyday knocks.

How it compares

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

Price $44.99
Cheaper than about 80% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameCASIO
Design styleSports
Item conditionNew
Display
Display typeDigital
Size & build
Main materialResin
Product shapeSquare
Strap materialResin
Closure typeBuckle Clasp
Bezel typeFixed Bezel
Housing materialResin
Case size38 mm
Watch glassResin Crystal
Environment & compliance
Water resistanceSplash Resistant
More details
Watch movementQuartz
Date displayDate
Suitable forUnisex

Questions about this item

How long will the battery last before it needs changing?

The watch runs on a standard quartz cell that typically lasts several years under normal daily use with the LED light and alarm.

Does the resin case and strap get hot or uncomfortable during all-day wear?

The lightweight resin construction stays at skin temperature and does not trap heat, so it remains comfortable for continuous wear.

Is any extra tool or accessory required to set the time, alarm or stopwatch?

All functions are adjusted using the four built-in buttons on the case; no external tool or accessory is needed.

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