Sapphire crystal, carbon case, Miyota movement: New Casio Edifice EFK-200 mechanical watches launching in July

Casio's next mechanical Edifice is no longer just a rumor. Following our March report on early renders leaked by CasioBlog, the same source has now published a more detailed breakdown of the EFK-200 series. This time, there's a July 2026 announcement window on the line, and several previously tentative specs are now locked in.

The biggest confirmations: as per Casioblog, sapphire crystal glass is now explicitly confirmed across the entire range, and the flagship EFK-200XPB-1A does indeed use a carbon case body — two details we flagged as unverified in our earlier coverage. The gold EFK-200DG-5A additionally receives full IP coating across the bezel, case, and bracelet. The carbon variant pairs uses a black rubber strap with rose gold indices and hands for the sake of contrast.

Design-wise, the EFK-200 is more of an evolution than anything else. The chamfered bezel, faceted crown, and slightly raised center bracelet links are some key changes over the EFK-110. The lug-less bracelet-to-case integration also carries over. Something really special here is the dial treatment — where previous generations had stone-like textured surfaces, the EFK-200 opts for gradient finishes with fine speckled detailing.

Inside, the Miyota 8215 in module 5766 configuration is expected, so it's nearly guaranteed that we are moving away from the Seiko NH35 that powered the EFK-100. The movement offers 42 hours of power reserve, 21 jewels, 21,600 vph, and a seconds-stop function for precise time-setting.

Pricing is now expected to come in slightly lower than our March estimate of $350-400. CasioBlog is specifying a $300-320 range, closer to the EFK-110 generation. Five colorways will reportedly launch simultaneously: black (EFK-200CD-1A), blue (EFK-200D-2A), red (EFK-200D-4A), gold (EFK-200DG-5A), and carbon black (EFK-200XPB-1A).

Buy the Casio Edifice EFB-730D-7AV on Amazon.