Is Casio F-91W watch legit?
No flags found — checked 19 Jul 2026
No flags found — Casio F-91W watch (checked 19 Jul 2026). Casio Computer Co., Ltd. is an identifiable manufacturer with official corporate and product pages for the F-91W. Three independent sources report that counterfeit F-91W or Casio watches circulate, including one individual report of Casio confirming a purchased F-91W was counterfeit; these reports concern counterfeit units and sellers, not the authenticity of every F-91W.
Checks passed
- No matching entry in the US CPSC recall database
- Listing title contains no known miracle-claim language
What independent sources say
- Reports describe counterfeit F-91W watches being sold through marketplace channels Burning Image watch guide
- A buyer reported Casio confirmed an F-91W was counterfeit Reddit r/casio
- Casio reports counterfeit versions of its watches exist worldwide Casio Intellectual Property Initiatives report
- A watch guide documents counterfeit Casio F-91W examples Burning Image watch guide
- A buyer reported Casio confirmed an F-91W was counterfeit Reddit r/casio
- Casio reports counterfeit versions of its watches exist worldwide Casio Intellectual Property Initiatives report