Casio Edifice Chronograph Watch. EFB730D-1AV - The "Flat Bezel" Sapphire Chronograph

The EFB-730D-1AV is a masterclass in Sophisticated Slimness. Unlike the chunky resin of a G-Shock, this watch features a remarkably slim 10.5mm profile and a solid stainless steel integrated bracelet. The standout feature is the Sapphire Crystal—a premium, scratch-resistant glass usually reserved for luxury Swiss timepieces—ensuring the face stays crystal clear even after years of daily wear.

The dial follows a "1-second Chronograph" layout with three sub-dials: a stopwatch minute hand, a stopwatch second hand, and a 24-hour indicator. The matte black face against the brushed silver steel creates a high-contrast, "professional tool" aesthetic that works just as well with a racing suit as it does with a business suit.

Key Performance Features
Sapphire Crystal with Non-Reflective Coating: Highly resistant to scratches and provides elite clarity by reducing glare from direct sunlight.

Slim 10.5mm Case Design: One of the most wearable chronographs in the Casio lineup, designed to slide effortlessly under a dress shirt cuff.

Solid Stainless Steel Band & Case: Features a mixture of brushed and mirror-polished surfaces for a premium, multi-dimensional look.

1-Second Stopwatch: Measures up to 59 minutes and 59 seconds—perfect for timing laps or daily tasks.

100m Water Resistance: While not a "diving" watch like a G-Shock, it is fully "swimmable" and safe for showers, rain, and snorkeling.

Screw-Lock Back: A high-precision case back that ensures superior water resistance and dust protection for the internal movement.

Date Display: A discreet window at the 4 o'clock position maintains the symmetrical balance of the racing-inspired dial.

In the Box
Edifice Premium Presentation Box, Edifice EFB-730D-1AV, Stainless Steel Link Adjustment Guide, User Manual, and Warranty.