Casio Edifice EFS-S660 Chronographs Arrive in the US With Solar Power, Sapphire Glass, and $200 Pricing
Casio has expanded its Edifice lineup in the United States with two new motorsport-inspired chronograph watches that combine compact stainless steel cases, solar charging, and premium everyday durability. The new Casio Edifice EFS-S660D-1A and EFS-S660PB-1A are now available in the US, each priced at $200.
The latest Edifice models are designed for watch fans who want a sporty analog chronograph without the oversized feel often found in modern racing-style watches. Both models use the same 45.3 x 38.3 x 11.6 mm stainless steel case, giving them a more compact profile while still keeping the bold, technical look associated with the Edifice series.
The EFS-S660D-1A is the more classic version, featuring a stainless steel case and matching stainless steel bracelet. It also adds a blue central seconds hand, giving the dial a clean but energetic accent. For buyers who prefer a lighter and more rugged-looking design, the EFS-S660PB-1A comes with a gray ion-plated stainless steel case, a black ion-plated bezel, a resin strap, and a red central seconds hand. The difference in weight is significant: the bracelet model weighs 129 grams, while the resin strap version comes in at just 71 grams.
Both watches bring several features that make them stand out in the $200 chronograph category. Casio has equipped the new Edifice EFS-S660 models with sapphire crystal treated with an anti-reflective coating, helping improve scratch resistance and visibility. They also offer 100-meter water resistance, making them suitable for daily wear, rain, hand washing, and recreational water exposure.
The motorsport influence is easy to spot. Each model includes a tachymeter scale around the dial, allowing users to calculate average speed over a measured distance. The central chronograph seconds hand supports timing down to 1/20 of a second, while the stopwatch can measure up to 59 minutes and 59.95 seconds. It also supports elapsed time, split time, and first- and second-place timing, making the watches practical for more than just style.
Casio’s Tough Solar technology is another major selling point. Instead of relying on frequent battery replacements, the textured dial is designed to allow light to reach the solar cells beneath it. Once fully charged, both watches can run for about five months without additional light exposure. Accuracy is rated at approximately ±20 seconds per month.
The dial layout keeps the traditional analog chronograph feel, with three main hands, three subdials, and a date display. A low-battery alert is also included, helping users know when the watch needs more light.
Key specifications:
Models: Casio Edifice EFS-S660D-1A and EFS-S660PB-1A
Case size: 45.3 x 38.3 x 11.6 mm
Case material: Stainless steel
Case finish: Standard stainless steel on EFS-S660D-1A; gray ion plating on EFS-S660PB-1A
Bezel: Black ion-plated bezel on EFS-S660PB-1A
Crystal: Sapphire crystal with anti-reflective coating
Band: Stainless steel bracelet on EFS-S660D-1A; resin strap on EFS-S660PB-1A
Weight: 129 grams for EFS-S660D-1A; 71 grams for EFS-S660PB-1A
Water resistance: 100 meters
Power source: Solar-powered
Power reserve: Around five months on a full charge without additional light
Accuracy: ±20 seconds per month
Chronograph: 1/20-second stopwatch
Stopwatch capacity: 59 minutes and 59.95 seconds
Stopwatch modes: Elapsed time, split time, and first- and second-place timing
Tachymeter: Yes
Dial: Textured solar dial
Display: Analog with three hands and three subdials
Date display: Yes
Low-battery alert: Yes
Compatible wrist size: 145 to 215 mm
With their blend of solar charging, sapphire glass, compact sizing, and racing-inspired styling, the Casio Edifice EFS-S660D-1A and EFS-S660PB-1A offer strong value for anyone looking for an affordable analog chronograph. At $200, these models bring a practical mix of durability, everyday wearability, and sporty design to Casio’s popular Edifice watch collection.
