Casio Classic Black Stainless Steel Alarm Unisex Watch - B640WB-1B Boss Other notable features of this

Other notable features of this signature style include the “diamond” textured dial with bold hour markers

10 months on rechargeable battery (operation period with normal use without exposure to light after charge)

Buckle Type: Foldover

The case is made of fine resin that incorporates carbon fiber for light weight along with rigidity that is superior to that of resin

the watch has got a resistancy up to 30 metres

Casio Classic Black Stainless Steel Alarm Unisex Watch - B640WB-1B Boss Other notable features of thisStraight from the Casio Vintage Collection comes a timepiece that never goes out of style. The B640 combines style with features Casio is known for such as an EL back light and a 1 100th second stopwatch. This timepiece is the perfect complement to any outfit. Basic Information Case size: 38. 9 35 9. 4 mm Weight: 49 g Case and bezel material: Resin Band Adjustable Clasp Stainless Steel Band Water resistance: 5 ATM Power supply and battery life Approx.