
Casio · Manufacturer image
Casio
Casio F-105W
F-105W-1A
The F-91W with the light fixed: same module, same 21 grams, but an EL backlight that lights the whole display instead of one corner of it.
Typical street price
$30
Our editorial estimate, not a live retailer price.
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At a Glance
- Quartz movement — ±30 seconds per month (Casio specification)
- Date display
- Day of the week
- Alarm
- Stopwatch
- Digital display with backlight
- Resin glass crystal
Specifications
- Brand
- Casio
- Movement
- Casio digital quartz module, battery, approximately 7 years on a CR2016 (Casio specification) of power reserve, rated ±30 seconds per month (Casio specification)
- Case
- Resin, 9.6 mm thick, 39 mm lug-to-lug
- Crystal
- Resin glass
- Bracelet / strap
- Resin strap
- Water resistance
- Water Resistant (Casio publishes no depth rating)
- Dial colours
- Black
- Style
- Digital, Everyday
- Recommended wrist
- Small, Medium
- Country of origin
- Japan
What we like
- An EL backlight that lights the entire display evenly, which is the one thing the F-91W gets wrong
- 21 g on the wrist — Casio specifies the same weight as the F-91W despite the larger case
- Seven years on one CR2016, so there is nothing to maintain
- ±30 seconds a month, published by Casio rather than estimated
- 1/100-second stopwatch with split timing and 1st-2nd place, a daily alarm and an auto-calendar
Full specifications
- Brand
- Casio
- Model
- F-105W
- Reference
- F-105W-1A
- Collection
- Not published
- Typical street price
- $30
- MSRP
- $30
- Movement type
- Quartz
- Movement
- Casio digital quartz module
- Caliber
- Not published
- Power reserve
- Battery, approximately 7 years on a CR2016 (Casio specification)
- Stated accuracy
- ±30 seconds per month (Casio specification)
- Balance spring
- Not published
- Case width
- 35.4 mm
- Case thickness
- 9.6 mm
- Lug-to-lug
- 39 mm
- Lug width
- Not published
- Weight
- 21 g
- Case material
- Resin
- Crystal
- Resin glass
- Water resistance
- Water Resistant (Casio publishes no depth rating)
- Dial colours
- Black
- Bracelet / strap
- Resin strap
- Bracelet material
- Resin
- Clasp
- Not published
- Date
- Yes
- GMT
- No
- Chronograph
- Yes
- Style
- Digital · Everyday
- Recommended wrist
- Small · Medium
- Country of origin
- Japan
- Released
- Not published
- Selection Score
- Not published
Where to Buy
Selection Time is reader-supported. If you buy through a link on this page we may earn a commission. This never affects our scores or what we recommend.
- Check Price on Amazon
Amazon
Price shown on Amazon
- View at Casio
Casio
Not published
Watch Brands: Casio
Casio approaches watches as electronics rather than jewellery, and the result is a catalogue where a $60 watch can carry a 200 m rating and a screw-down crown.




