Japan Treasure Factory
Casio EDIFICE EFK-100YD-2AJF Mechanical Automatic — Forged Carbon Dial Sapphire
Casio EDIFICE EFK-100YD-2AJF Mechanical Automatic — Forged Carbon Dial Sapphire
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EDIFICE EFK-100YD — Mechanical Automatic, Forged Carbon Dial
EDIFICE AUTOMATIC / EFK-100 Series / Released July 2025
From EDIFICE's ongoing pursuit of the affinity between motorsport and watches comes this 3-hand analog model featuring a distinctively patterned dial. The dial expresses the texture of forged carbon, while hollow-shaped hour and minute hands with luminous tips balance a sporty look with visibility in low light. Mirror-finished bar index edges and a fine machine-turned dial ring add refined detail throughout. At its heart is a mechanical movement, viewable through the see-through case back — a genuinely mechanical watch experience. The solid stainless steel band gets slanted case-side edges for a more integrated feel with the case, and inner anti-reflective coated sapphire glass resists scratches while ensuring high visibility.
Specifications
| Model | EFK-100YD-2AJF |
| Series | EDIFICE AUTOMATIC / EFK-100 Series |
| Case size | 43.5 × 39 × 12.5 mm / 1.71 × 1.54 × 0.49 in |
| Weight | 148 g / 5.2 oz |
| Case / bezel material | Stainless steel |
| Band | Metal band (solid stainless steel), one-push tri-fold clasp |
| Glass | Sapphire glass with inner anti-reflective coating |
| Water resistance | 10-bar (100-meter) |
| Structure | Antimagnetic (JIS Type 1) |
| Movement | Mechanical automatic (with manual winding) |
| Case back | See-through screw-back |
| Power reserve | Approx. 40 hours (fully wound) |
| Accuracy | Daily rate: -35 to +45 seconds |
| Movement details | 24 jewels, 21,600 vibrations/hour |
| Other | Date display, second-hand stop function |
| Band size | 150–205 mm |
| Release date | July 2025 |
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