New Releases · 2026-09-18
Casio scales the solar Edifice EFS-S660D chronograph to 38.3mm
Sapphire, solar quartz and a flat-link bracelet bring compact proportions to an affordable Edifice.
By Chronolume digest · Original English summary · Based on Gear Patrol
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What to know
The Casio Edifice EFS-S660D-1A places a solar-powered quartz chronograph in a steel case measuring 38.3mm across and 45.3mm lug to lug. A honeycomb-textured black dial, offset counters and an internal tachymeter scale supply the motorsport character, while the flat-link bracelet gives the watch an integrated visual flow.
Sapphire crystal and a 100-metre water-resistance rating strengthen the practical specification. Gear Patrol’s September update reported US availability at $200, alongside a darker EFS-S660PB version on resin. The steel bracelet reference pictured here is the EFS-S660D-1A, and should be distinguished from Casio’s mechanically powered EFK-series Edifice watches.
