Casio Edifice EFB-730DJ-1AJF Sapphire Chronograph Black Dial
Casio Edifice EFB-730DJ-1AJF Sapphire Chronograph Black Dial
The Casio EDIFICE EFB-730DJ-1AJF is a classic sports chronograph with a black dial, sapphire crystal, stainless-steel case, and solid stainless-steel bracelet. Its motorsport-inspired design combines prominent index bars with a traditional horizontal sub-dial layout.
This battery-powered quartz watch features a 1-second stopwatch, date display, Neobrite hands and markers, and 10-bar water resistance. The stainless-steel case measures 40 mm wide and 11 mm thick, while the sapphire crystal provides strong resistance to everyday scratches.
The bracelet uses a one-touch three-fold clasp and fits wrists from approximately 150 to 205 mm. Battery life is approximately three years, with average accuracy of ±20 seconds per month.
Key Features
Casio EDIFICE quartz chronograph
Black dial with horizontal sub-dial arrangement
Sapphire crystal
Stainless-steel case and solid stainless-steel bracelet
1-second stopwatch with split-time function
Date display between the 4 and 5 o’clock positions
10-bar water resistance
Neobrite hands and index markers
Specifications
Specification | Details |
Brand | Casio |
Model / Reference | EFB-730DJ-1AJF |
Collection / Series | EDIFICE |
Movement | Battery-powered quartz |
Movement Type | Quartz |
Case Material | Stainless steel |
Case Diameter | 40.0 mm |
Case Thickness | 11.0 mm |
Crystal | Sapphire crystal |
Dial Color | Black |
Dial Details | Horizontal sub-dial layout with prominent index bars and date display |
Caseback | Screw-lock back |
Bezel | Stainless steel |
Bracelet / Strap | Solid stainless-steel bracelet |
Clasp / Buckle | One-touch three-fold clasp |
Water Resistance | 10 bar |
Functions | Chronograph, elapsed time, split time, first- and second-place timing, date display |
Battery | SR920SW, approximately 3-year battery life |
Other | Neobrite hands and index markers; average accuracy ±20 seconds per month; wrist range 150–205 mm; approximately 137 g |
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