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Stealth Black · Details

About

The F-91WB strips the bezel back to a clean black face with minimal print. The most understated F-91W you can wear.

Runs the same Casio module as the original 1989 F-91W: daily alarm, hourly time signal, stopwatch, auto calendar, 12/24-hour time and an LED light.

What it does

  • LED light

    Hold LIGHT to read the display in the dark.

  • Daily alarm

    Beeps at the same time every day.

  • Hourly signal

    A short beep on the hour, if you want it.

  • Stopwatch

    Start, stop and split time.

  • Auto calendar

    Day and date on the display.

  • 12 / 24-hour

    One press of the right button switches.

  • Water resistant

    Rain, splashes and hand-washing.

  • ~7-year battery

    A CR2016 coin cell, per Casio.

  • 21 grams

    Light enough to forget about.

Three buttons

  1. L

    LIGHT · Upper left. Lights the display. In setting modes it moves to the next digit.

  2. C

    MODE · Lower left. Cycles Time, Alarm, Stopwatch and Time setting. In setting modes it exits.

  3. A

    ALARM ON·OFF / 24HR · Right. Switches 12/24-hour, turns the alarm and chime on or off, starts and stops the stopwatch.

How to set time, alarm, stopwatch ↗

Specifications

Model
Casio F-91WB-1AEF
Colour
Stealth Black
Case
Resin, approx. 38.2 × 35.2 × 8.5 mm
Weight
Approx. 21 g
Water resistance
Water resistant (splashes, rain, hand-washing)
Alarm
Daily alarm and hourly time signal
Stopwatch
Stopwatch with split time
Calendar
Auto calendar, 12/24-hour format
Light
LED light
Accuracy
±30 seconds per month
Battery
CR2016, approx. 7 years

Questions

Is this a genuine Casio?

Yes. Every watch in our Original range is a genuine Casio F-91W. Customized pieces are modified watches and are labelled as customized.

Is there a warranty?

We are an independent reseller, so there is no official Casio India warranty. If the watch arrives damaged or defective, tell us within 7 days of delivery and we replace it.

Can I swim or shower with it?

No. The F-91W is water resistant for rain, splashes and hand-washing, not for swimming or showering.

What battery does it take?

A CR2016 coin cell. Casio rates it at about seven years. Any watch shop can swap it in a few minutes.

How accurate is it?

Casio rates the F-91W at about ±30 seconds a month.

How much is delivery?

Delivery is shown at checkout before you pay. We deliver anywhere in India.

How do I pay?

Prepaid only, on Shopify checkout: UPI, debit and credit cards, and netbanking. No cash on delivery.

When will it arrive?

Usually within 10 to 14 days. You get a tracking link by email as soon as your watch ships.

What if it arrives damaged?

Message us within 7 days of delivery with your order number and a photo, and we will send a replacement.

Shipping & replacement policy ↗

Independent reseller. Not affiliated with or endorsed by Casio Computer Co., Ltd. Casio and F-91W are trademarks of their owner.