Why not?Manually switching off time display on a non-solar model probably doesn't save much power.
Well, I have a quartz analogue watch with a battery that lasts ten years. If providing mechanical power doesn't take much juice, a digital display can't take much either. The power drains in a digital watch, as I understand it, are chimes, alarms, and use of the backlight (and atomic time-keeping if present). If these are turned off, the life of the battery can exceed the period stated by Casio in the manual. The gaskets would need to be replaced several times in a thirty year period, so a longer-lasting battery wouldn't make the watch maintenance-free. With the cost of batteries being fairly low, the savings could probably be counted in pennies.Why not?
The lithium battery would deplete on it's own within 15-20 years anyway, even outside the watch.Why not?
Situation is: I have a 10 year 7100 for 3rd world travel and surfing/climbing weekends on the basis it cost so little I don't mind scratches/theft/loss. So I use it for 1/6th of the year. If I could switch it right off for the other 5/6 that makes it a 30 year watch assuming a saving of 50% by turning off the display. Worth having I would have thought.