Casio
Ref: EFS-S640PB-1AV
Technical details
| Precision | +/- 20 sec |
| Tape material | Stainless steel bracelet |
| Basic color | noir |
| Battery level indicator | Battery level indicator |
| Housing | Steel case |
| Adjustable closure | Safety clasp |
| Date functions | Indication of the date |
| Digital / Analog | Analog |
| Screen | Neobrite coating |
| Glass | Sapphire glass |
| Screwed housing background | Yes |
| Solar operation | Yes |
| Resistance to water | 10 bar |
| Size / Dimension (H x W x D) | 53 mm x 48 mm x 12.2 mm |
| Weight | 167 g |
Details / Specifications
Battery level indicator
Displays the current level of the batteries.
Stainless steel bracelet
Solid, durable and elegant: the stainless steel bracelet is a key watch classic.
Steel case
The watch case is made of stainless steel, robust and quality.
Indication of the date
The current date is displayed in a window on the dial.
Neobrite coating
The needles and / or index have a fluorescent coating and continue to shine in the dark when the watch has previously been exposed to a luminous source.
Sapphire glass
Sapphire glass is an artificial material that seduces with its hardness and strength resistance. It makes it possible to avoid unsightly damage, scratches or tarnish.
Solar operation
Solar cells provide an autonomous power supply and environmentally friendly. Surplus solar energy is stored in an accumulator.
Timing function - 1/1 sec - 30 min
The timetables are carried out at the second, over a maximum of 30 minutes.
Safety clasp
Perfectly safe: The bracelet of this watch is equipped with a special safety clasp that prevents unintended opening of the bracelet.
Screwed housing background
Thanks to the screwing the bottom of the case, the inside of the watch is perfectly protected while remaining easily accessible, for example for a battery change.
Sealing class (10 bars)
Perfect for swimming and diving with a tuba: the watch is waterproof up to 10 bar (ISO 22810).
