How are they charging $10 for this $3 watch from 1990?

Anything that was $3 in 1990 is now $10. Back in 1990 gas was $1.16/gal. The average home price was under $150000. As time moves on prices go up.

Does the count down timer be set to seconds?

No countdown timer. Look at Model F201WA-1A for that feature.

how far in depth is the water resist

If you want to be absolutely safe, get the Casio MRW200 dive watch which is good for 100 m. Casio F91W is water resistant and you could take it in shower, swimming, etc.

The rubber band broke after 2 years of use. I love this watch and don't want to get a new one. Any tips for a replacement band? Maybe a nylone one?

Aliexpress or ebay you'll find almost exact generic replacements for a couple bucks shipped. Search for words like F91W strap, 18mm watch band. You can also use normal 18mm spring bars instead of the pins that are stock with the F91W.

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F91W Series | Digital Watch | Water Resistant | LED Light | 1/100 SEC Stopwatch | Regular Time Keeping (HR, Min, SEC, PM, Date, Day) | Daily Alarm | Lightweight | 7 Year Battery

Product ID: 253442479

💧30m Water Resistant splash-proof

🔋7 Year Long-lasting Battery

⏱️1/100 SEC Stopwatch precision

¥4402

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Description

⌚ Timeless tech for the modern go-getter—stay sharp, stay ahead!

ALWAYS ON ALWAYS READY - 7-year battery life means less hassle, more reliability—stay powered through every deadline.
SPLASH PROOF CONFIDENCE - 30-meter water resistance keeps you worry-free from rain to spills, perfect for the dynamic professional.
ILLUMINATE YOUR SCHEDULE - Built-in microlight ensures you never miss a beat, even in low-light meetings or late-night brainstorming.
TIMELY ALERTS EVERY DAY - Daily alarm function keeps your agenda on track—because punctuality is the new power move.
PRECISION AT YOUR FINGERTIPS - Instant 1/100 second stopwatch for flawless time tracking during your busiest moments.

The Casio F91W-1 is a sleek, lightweight digital watch featuring a precise 1/100 second stopwatch, 30-meter water resistance, and a built-in LED microlight. With a remarkable 7-year battery life and daily alarm, it’s designed for professionals who demand reliability and style in every second.

Specifications

Asin	B000GAWSDG
Batteries	1 Lithium Metal batteries required. (included)
Best Sellers Rank	#197 in Women's Wrist Watches
Country Of Origin	China
Date First Available	7 August 2012
Department	Men
Is Discontinued By Manufacturer	No
Item Model Number	F-91W-1X
Manufacturer	Casio
Product Dimensions	9 x 34 x 39 cm; 53.86 g

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¥4402

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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