Casio EDIFICE EFS-S660D-1AJF Solar Chronograph Sapphire Crystal
Casio EDIFICE EFS-S660D-1AJF Solar Chronograph Sapphire Crystal
The Casio EDIFICE EFS-S660D-1AJF is a solar-powered analog chronograph with a stainless-steel case and bracelet. It features a black dial, sapphire crystal with anti-reflective coating, and a 100 m water-resistance rating.
The stainless-steel case measures 45.3 × 38.3 × 11.6 mm and is fitted with a stainless-steel bracelet secured by a one-touch 3-fold clasp. The chronograph includes 1/20-second timing, elapsed-time, split-time, and first- and second-place timing functions, together with a tachymeter and date display.
The watch operates for approximately five months from a full charge until the hands stop and has an accuracy rating of ±20 seconds per month. It is suitable for wrists measuring approximately 150–205 mm.
Key Features
Casio EDIFICE EFS-S660D-1AJF
Solar-powered analog chronograph
Stainless-steel case and bracelet
Sapphire crystal with anti-reflective coating
Black dial with blue center-seconds hand
100 m water resistance
1/20-second stopwatch with split and placing-time functions
Date display, tachymeter, and low-battery alert
Specifications
Specification | Details |
Brand | Casio |
Model / Reference | EFS-S660D-1AJF |
Collection / Series | EDIFICE |
Movement | Solar-powered analog chronograph |
Movement Type | Solar |
Case Material | Stainless steel |
Case Dimensions | 45.3 × 38.3 × 11.6 mm |
Crystal | Sapphire crystal with anti-reflective coating |
Dial Color | Black |
Dial Details | Blue center-seconds hand |
Bracelet / Strap | Stainless-steel bracelet |
Clasp / Buckle | One-touch 3-fold clasp |
Water Resistance | 100 m / 10 bar |
Functions | 1/20-second stopwatch, elapsed time, split time, first- and second-place timing, tachymeter, date display, low-battery alert |
Power Reserve | Approximately 5 months from a full charge |
Accuracy | ±20 seconds per month |
Wrist Fit | 150–205 mm |
Weight | 129 g |
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