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Casio F-105W F-105W-1A black dial front view

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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
Watch Size Database

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.

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.

All watches from Casio

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