The B640WB-1BVT digital all black metal watch has a stainless steel band that brings a rich, vintage feel, with colors and finishes evoking a classic casual watch.

Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Other: Auto-repeat

2012年3月29日 · Buy Casio Smart Wrist Watch B640WB-1AEF, Black/Grey, 38.9 x 35.0 x 9.4 mm, Bracelet and other Wrist Watches at Amazon.com. Our wide selection is eligible for free shipping and free returns.

1、简洁运动设计风格,平面表圈； 2、 采用人造蓝宝石玻璃镜面； 3、 搭载强劲太阳能动力和电量指示符功能。

Casio/卡西欧电子琴 CT-640 . 1988年日本原装生产. 当年日本本土上市价格59800日元. 内置110种节奏465种音调. 最早一批也是卡西欧产品线第一款基于采样的键盘。 61 键，10 复音，带 MIDI 接口，可用 6 节一号电池驱动。 重约 6.5kg，大小约 940mm x 320mm x 90mm

Make a dynamic, bold statement — a classic EDIFICE sports chronograph with an octagonal bezel in a solid, strong design. The case and band are finished in gray ion plating for bold style and scratch resistant practicality.

经典EDIFICE运动表款，搭配坚固强悍的八角表圈设计，展现动感前卫风格。

2020年5月11日 · I know previous Casio digital watches have a legendary reputation when it comes to marine performance, though they were only ever marketed as having a mere 30m of water resistance. As you can see from the text below the logo, this B640 advertises 5bar, meaning it should be even better in this regard.