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The Casio F-105W-1A tracks time via a digital interface with a 30-second monthly accuracy. Under the resin shell, a CR2016 cell powers this Casio Illuminator watch in Bangladesh for seven years. It upgrades visibility with a full-panel electro-luminescent backlight compared to the side-mounted LED on the F-91W. This updated module provides uniform screen lighting for night use.
Key Features
- EL Illuminator: Electro-luminescent panel covers the entire digital display for uniform lighting. Digits remain visible in total darkness.
- Lightweight Build: Resin case and strap result in a total weight of 21g. The watch won't cause wrist fatigue.
- 7-Year Battery: Internal CR2016 lithium cell runs the module for 84 months. Maintenance cycles decrease significantly.
- Resin Construction: 39×35.4×9.6 mm case uses hardened resin with an acrylic crystal. The resin frame withstands road dust and physical impacts.
Frequently Asked Questions
Is Casio F-105W-1A waterproof for swimming?
This model has a 30m water resistance rating for light splashes and rain. It won't survive swimming or high-pressure water exposure.
What is the difference between Casio F91W and F105W?
The F-105W-1A uses a full-panel EL backlight instead of a single side-LED. This change increases the case thickness to 9.6mm.
Casio F-105W-1A original vs fake?
Holding the bottom right button displays the word "CASIO" on genuine modules. A real resin strap remains flexible under pressure without cracking.
