Edifice Automatic EFK-100D-3A

The Casio Edifice EFK-100D-3A is a significant model in the Edifice collection, representing Casio’s move into mechanical/automatic watch territory. It features a stainless‐steel case and bracelet, giving it a refined yet sporty metal build. The watch is driven by an automatic self‐winding movement (with manual winding capability) offering a power reserve of around 40 hours. The dial of this model is a distinct green shade, paired with luminous hands and markers for better legibility in low light. It also features a date display, a screw-down or exhibition case back (depending on region) letting you observe the movement, and a water resistance rating of 100 metres (10 bar), making it fit for everyday wear and occasional water exposure. The sapphire crystal provides scratch resistance, and the bracelet features a one-touch 3-fold clasp for secure wear. Dimensions are roughly 39 mm in diameter (or 43.5 × 39 × 12.5 mm depending on listing) and it includes magnetic resistance construction in line with the Edifice emphasis on durability.