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Casio F91W

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Image:Casio F91W.jpg The Casio F91W is an inexpensive model of digital watch, manufactured by the Japanese firm Casio. It has a daily alarm and a 1/100 second stopwatch.

Since the watch was introduced it has only been updated once. The change was to the backlight which went from the standard light in older watches to the blue 'micro-light' seen in most of today watches.

The watch is controlled by three pushbuttons. The upper left button turns on the backlight, cancels the alarm, and is used for selecting settings. The lower left button cycles the modes of the watch: → Alarm → Stopwatch → Time adjustment and back to the normal time display. The button on the right is the function button: it starts and stops the stopwatch, and changes the settings currently being adjusted. The watch's display shows the day of the week, day of the month, hour, minutes, seconds, and the signs for PM (or 24-hour clock), alarm signal, and hourly signal.

In stopwatch mode, minutes, seconds and one-hundredths of a second are shown and a LAP feature (temporary pause) is available.

This watch is widely available through the world in various packaging, including a version with a 'chrome' case and strap available in the USA at Fry's and other outlets.

[edit] Claimed use in terrorism

This model of watch is notable because United States intelligence officials have identified it as the watch that terrorists use when constructing time bombs.<ref name=MotherJones060712> "Why Am I in Cuba?", Mother Jones (magazine), July 12 2006</ref> Ahmed Ressam, the millennial bomber, bought two Casio F91W,<ref name=Wcvb>Guantanamo Captives Jailed Because Of Digital Watches, WCVB, March 10 2006</ref>

When the Department of Defense was forced to comply with US District Court justice Jed Rakoff's court order to release the documents from Guantanamo detainees' Combatant Status Review Tribunals it became known that the allegations against approximately one dozen of the Guantanamo detainees justified their continued detention because they had been wearing this model of watch, when captured.<ref>Guantanamo: what you need to know, Alternet</ref>

Casio officials declined to be interviewed about the U.S. intelligence accusations.<ref name=Wcvb>Guantanamo Captives Jailed Because Of Digital Watches, WCVB, March 10 2006</ref> But Casio did issue a statement, where they said the watch "has no exclusive technology," and, "Casio continues to work closely with all government agencies, including the Department of Homeland Security to help limit any potential threats and deal with security concerns."

Detainees who testified to their surprise and confusion over this allegation have described their watches, and those descriptions have not matched the description of the F91W. Their descriptions have mentioned built-in compasses and calculators -- features the F91W lacks.

[edit] Detainees whose continued detention was justified by their ownership of a Casio watch

Mohammed Ahmad Said Al Edah
Abdullah Kamel Abdullah Kamel Al Kandari
Abdelaziz Kareem Salim al-Noofayee
Hani Abdul Muslih al Shulan
Sabri Mohammed Ebrahim
Usama Hassan Ahmend Abu Kabir
Abdul Matin
Mazin Salih Musaid
Salih Uyar
  • Told his Tribunal, "If it's a crime to carry this watch? Your own military personnel also carry this watch, too, Does that mean that they're just terrorists as well?"<ref>Details from the Guantanamo Transcripts, NPR</ref><ref name=CsrtUyar>

Summarized transcripts (.pdf), from Salih Uyar's Combatant Status Review Tribunal - mirror - pages 15-21</ref>

Mosa Zi Zemmori
Mesut Sen
Abdul Rahman Abdul Abu Ghiyth Sulayman
Ahmed Yaslam Said Kuman
Tariq Shallah Hasan Al Alawi Al Harbi
Fadil Husayn Salih Hintif
Muhammad Abd Allah Mansur Al Futuri
Saeed Ahmed Mohammed Abdullah Sarem Jarabh

[edit] References

<references/>

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