
Best for
Best overall
Casio F-105W
The F-91W with its one real flaw fixed, at the same $29.95. Where the F-91W lights one corner of its display with a small LED, the F-105W has an electro-luminescent panel behind the whole thing — that is what ILLUMINATOR on the dial means. Same module, same ±30 seconds a month, same seven-year CR2016, same 21 grams.
The compromise
1.1 mm thicker than the F-91W, and Casio publishes no depth rating for it — only WATER RESIST, which covers rain and hand-washing.
- Typical street price
- $30
- Movement type
- Quartz
- Power reserve
- Battery, approximately 7 years on a CR2016 (Casio specification)
- Case width
- 35.4 mm
- Lug-to-lug
- 39 mm
- Crystal
- Resin glass
- Water resistance
- Water Resistant (Casio publishes no depth rating)





