Casio Edifice Classic Watch EFS-S640D-1AVUEF

Introducing the Casio Edifice EFS-S640D-1AVUEF, a chronograph that embodies the Edifice philosophy of combining technical precision with refined aesthetics. Its 44.5mm stainless steel case features a brilliant polished finish that elegantly contrasts with the black elements of the bezel and crown. The deep black dial houses three silver subdials for the running seconds, the 24-hour indication and the chronograph minutes. Applied silver-tone indices and luminous hands ensure optimal readability in any lighting condition.

At its heart beats the Casio 5585 module, a solar quartz movement accurate to ±20 seconds a month. The whole dial works as a solar panel that charges a rechargeable battery, and on a full charge the watch keeps running for about five months without light. The chronograph times in 1-second steps up to 29'59", with elapsed time, split time and two finishes. Holding down one of the pushers for about a second sends the chronograph seconds hand to the battery level (H, M, L), and if the charge runs low the seconds hand jumps every two seconds as a warning. The tachymeter scale on the bezel, graduated up to 500, gives average speed over a known distance, and the date sits in a day indicator. The screw-down crown and 100-meter water resistance make it suitable for recreational aquatic activities.

Edifice was born in 2009 as Casio's premium line oriented toward the urban and active man who demands precision without sacrificing style. Inspired by the world of motorsports and precision engineering, each Edifice incorporates advanced technologies in designs that evoke the elegance of classic European chronographs, but with Casio's characteristic reliability and innovation.

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Technical Specifications

Reference: EFS-S640D-1AVUEF
Module/Caliber: 5585
Type: Analog
Movement: Quartz
Water resistance: 100 meters
Case material: Stainless steel
Case color: Polished silver with black details
Strap material: Stainless steel
Strap color: Silver
Dial color: Black
Crystal: Sapphire
Light: Luminous hands
Diameter: 44.5 mm
Thickness: 13.3 mm
Weight: 118 g
Functions: 1-second chronograph up to 29'59" (elapsed time, split time, two finishes), tachymeter, 24-hour hand, battery level indicator, low battery alert, date
Battery: TS920E
Made for: Men

User manual

Download the manual in English (PDF)