


Make a dynamic, bold statement — a classic EDIFICE sports chronograph with an octagonal bezel in a solid, strong design. The case and band are finished in gray ion plating for bold style and scratch-resistant practicality. Case size (L× W× H) 47 × 44.3 × 10.8 mm Weight 136 g Case and bezel material Stainless steel Band Stainless Steel Band One-touch 3-fold Clasp Water resistance 100-meter water resistance Power supply and battery life Approx. Battery life: 2 years on SR920SW Exterior Glass Mineral Glass Surface treatment Gray ion-plated case Gray ion-plated band Compatible band size 150 to 205 mm Watch Features Stopwatch 1/10-second stopwatch Measuring capacity: 59'59.9'' Measuring modes: Elapsed time, split time, 1st-2nd place times Accuracy Accuracy: ±20 seconds per month Other features Regular timekeeping: Analog: 3 hands (hour, minute, second), 3 dials (stopwatch 1/10 seconds, stopwatch minutes, stopwatch seconds) Date display
| Band Material | Stainless Steel |
| Band Closure | Clasp |
| Department | Men |
| Model Number | EFV-640DC-3A |
| Watch Movement | Quartz |
| Face/Dial Type | Chronograph |
| Face/Dial Shape | Round |
| Model Name | CASIO EFV-640DC-3A |
