Review: Casio WVA-M640 Tough Solar Watch

Just how accurate does a watch need to be? If you’re like me, the answer is “As perfect as possible.” But perfection tends to be pricey, and it’s often paired with an aggressive, overwrought design. That’s what makes Casio’s WVA-M640 model so intriguing. Its classic look masks a stunningly modern feature set, without the broad-shouldered bragging found in many contemporary timepieces.

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