CASIO EFS-S640DC-1AVUEF

Technical Specifications

SOLAR POWER SYSTEM
· The watch is powered by independent, environmentally friendly solar cells. Excess solar energy is stored in a battery.
NEON DISPLAY
· The hands and/or index are coated with a fluorescent coating and, if the watch has been previously exposed to a light source, glow in the dark.
DATE DISPLAY
· The current date will appear on the display.
STOPWATCH
· Measuring unit: 1 second
· Measuring capacity: 29'59" (30 minutes).
· Elapsed time, split time, two finishes.
SAPPHIRE CRYSTAL
· The sapphire crystal is man-made and impresses with its hardness and scratch resistance. It prevents the watch from being scratched or the crystal from fogging up. It is covered with a non-reflective film.
CARBON-REINFORCED RESIN CASE
STAINLESS STEEL STRAP
· Robust, durable, and elegant. The stainless steel strap is a classic watch.
SAFETY CLASP
· Infallible, the strap of this watch has a particularly secure clasp that prevents accidental opening.
ACCURACY AT NORMAL TEMPERATURES
· +/- 20 seconds per month.
BATTERY LIFE
· Solar panel and one rechargeable battery. Approximate battery life Battery life: 5 months (without light exposure after a full charge).
LOW BATTERY INDICATOR
· An indicator shows the current battery level.
WATER RESISTANCE CLASSIFICATION (10 BAR)
· Perfect for swimming and snorkeling: the watch is water resistant to 10 bar / 100 meters. This meter indication does not refer to the immersion depth, but rather to the air pressure used in the water resistance test (ISO 22810).
DIMENSIONS
· 50.1 mm × 44.5 mm × 13.3 mm
WEIGHT
· 118 g