EQUIPThe Gadgeteer · 1h ago
Casio’s Compact New Chronograph Has Solar Power and Sapphire Crystal

Executive Brief
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Casio has launched two Edifice chronograph models featuring solar-powered movements and scratch-resistant sapphire crystals. The design prioritizes a compact case size under 40mm to accommodate professionals seeking motorsport aesthetics without the bulk of traditional sporty watches.
- 01New Edifice models EFS-S660PB-1A and EFS-S660D-1A feature sub-40mm cases for improved wearability
- 02Integrated solar power technology eliminates the need for frequent battery replacements during travel
- 03High-grade sapphire crystal provides enhanced durability and clarity for professional environments
- 04Motorsport-inspired styling includes multiple subdials and a tachymeter in a downsized form factor
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Sporty chronographs often come with a compromise. If you want multiple subdials, a tachymeter, and motorsport-inspired styling, you frequently have to accept a fairly large watch. That can make an otherwise practical chronograph less appealing if you prefer a case that stays below 40mm. The Casio Edifice EFS-S660 PB-1A and EFS-S660D-1A address that problem with […]