Besides the fresh new look they feature large buttons, easy to read displays and advanced intuitive programming designed specifically with the racing sailor in mind. The upper left button turns on the backlight, cancels the alarm, resets the stopwatch or marks the split (lap) time, and is used for selecting settings. End of Sequence — Countdown or Count UpsDepending on the user’s preference, the watch can be set up to auto repeat the countdown at the end of the sequence for general recall restarts, or to start counting up to track elapsed time.
Innovative Race Functions with Bold New Styling The most popular sailing watch in the world just got better. The watch is powered by a single CR2016 3-volt lithium button cell, which lasts at least seven years, assuming 20 seconds of alarm and one second of light usage per day. Should this happen before :30 seconds, the watch will zero in at the beginning of the current minute. Retrieved April 27, 2011. ^ a b c «F91W-1 Classic Timepiece». Casio. Sound signals can be turned off if desired.
November 7, 2005. Retrieved February 27, 2007. ^ «Combatant status review board for Mohammed Ahmad Said el Edah». The New York Times. When the adjustments are finished, the bottom left button can be pressed once to return the watch to normal mode. February is always counted as 28 days. The watch uses a faint, green LED backlight located to the left of the display for illumination. Therefore, the watch front is marked WATER RESIST, but Casio reports different values for different variants of the watch. The watch is currently set to sound its daily alarm at 7:30 a.m., but hourly beeps are disabled. After 30 seconds it will start the next minute as displayed.