Casio has officially launched two new motorsport-inspired Edifice chronographs in the United States: the stainless steel EFSS660D-1A and the resin-strapped EFSS660PB-1A. Priced at $200 each, both timepieces bring high-precision timing, sapphire crystal, and solar-charging tech down to an accessible price point while trimming down case dimensions for superior wrist comfort.
Unlike many modern chronographs that overwhelm the wrist with oversized 44mm or 45mm diameters, these new Edifice models feature a trim 38.3mm width profile and an overall case footprint of 45.3 x 38.3 x 11.6 mm. The result is a refined racing chronograph that offers classic track utility without feeling heavy or intrusive during daily wear.
Track-Inspired Engineering Meets Solar Efficiency
The headline engineering feature of both the EFSS660D-1A and EFSS660PB-1A is Casio's Tough Solar power system. Beneath the textured black dial sits an integrated solar cell network designed to capture ambient sunlight and indoor fluorescent lighting, eliminating the hassle of regular battery replacements. Casio rates the internal power reserve at up to five months on a full charge, even when kept completely out of light. Furthermore, an onboard low-battery alert warns wearers when light exposure is needed to maintain accuracy, which is rated within ±20 seconds per month.
The dial layout presents three distinct subdials: a 1/20-second chronograph counter at the 12 o'clock position, an elapsed minute tracker at 9 o'clock, and a running seconds display at 6 o'clock. A discreet date window sits at the 4 o'clock position, keeping daily functionality intact without cluttering the chronograph instruments. Protecting the entire cluster is a scratch-resistant sapphire crystal coated with an anti-reflective layer, a high-end material feature rarely seen on chronographs at the $200 price mark. Both models also deliver 100-meter water resistance, making them durable enough to handle rain, swimming, or everyday physical activity.
Two Distinct Wrist Aesthetics for Racing Enthusiasts
While both models share the same core module and case geometry, Casio offers two distinct aesthetics tailored for different preferences:
• Casio Edifice EFSS660D-1A: Features a classic brushed stainless steel case and matching multi-link bracelet. It features a blue central seconds hand that provides a subtle pop of contrast against the dark subdials, weighing in at 129 grams for a solid, traditional feel.
• Casio Edifice EFSS660PB-1A: Opts for a stealthier look with a gray ion-plated stainless steel case, black ion-plated bezel, and a flexible black resin strap. A vivid red central seconds hand highlights its motorsport lineage, while the lightweight resin band drops total weight to just 71 grams.
The shift toward a 38.3mm width is a welcome departure from the oversized watch trend that dominated the sport chronograph market for years. For users with smaller to medium wrist circumferences (fitting wrist sizes between 145mm and 215mm), the trimmed-down dimensions prevent the lugs from hanging over the edges of the wrist, allowing the watch to slide comfortably under a shirt cuff or racing glove alike.
For track split tracking and speed calculations, both watches feature an outer tachymeter scale around the bezel. The analog stopwatch module can measure elapsed time down to 1/20 of a second for up to 59 minutes and 59.95 seconds, with modes supporting split timing as well as first- and second-place finishes.
Pricing and Market Positioning
Both the Casio Edifice EFSS660D-1A and EFSS660PB-1A are available immediately through Casio's official US website for $200. Following their initial summer rollout across Japan and Europe, their US debut provides budget-conscious buyers with a compelling alternative to traditional quartz chronographs and bulkier sport watches.
By combining solar sustainability, anti-reflective sapphire glass, and a genuinely wearable sub-39mm case width, Casio has created a pair of versatile everyday chronographs that bridge the gap between track utility and modern desk wear.
