Photos: Tempus Shop
Files / Casio / ref. F-91W-1YEG
Casio F-91W
At this price, nothing tells the time as faithfully for as long.
The verdict on 5 criteria2.9 / 5
Score weighted for an everyday watch
Movement
Crystal
Water resistance
Finish
Fair price
Where to pay lessChecked 12 November 2026
Only one retailer checked so far. More are on the way.
See the offer at Tempus · €19.90The button leads to today’s price. Affiliate link: the retailer pays us a commission, at no extra cost to you.
Who it is for
Anyone who wants a reliable watch they never have to think about, or a second watch for sport and travel.
Who it is not for
Anyone who expects a watch to be a beautiful object.
The real flaw
A token backlight and resin that marks with time.
Investigation
What you need to know
The best-known digital watch in the world: stopwatch, alarm, light, and almost nothing to break.
- Quartz accuracy, several years of battery life
- Light and practically indestructible day to day
- Weak light, resin case and crystal
Desk research, without handling the watch.
- Reference
- F-91W-1YEG
- Movement
- Digital quartz
- Case
- Resin
- Water resistance
- Splash resistant
- Functions
- Stopwatch, alarm, light
Questions
The short answers
Is the Casio F-91W a good watch?
At this price, nothing tells the time as faithfully for as long. It scores 2.9 out of 5, weighted for an everyday watch.
Can you swim with the Casio F-91W?
No. It resists splashes, not immersion.
Which movement powers the Casio F-91W?
A digital quartz module, powered by a battery that lasts several years.
Where can you buy the Casio F-91W at the best price?
At our check on 12 November 2026, the lowest price was €19.90 at Tempus.