getDigital Binary Wrist Watch for Professionals with LED Lights - A Black Digital Clock That depicts The time as Binary Code WHAT IS A BINARY WATCH? A binary clock displays the time in the language of computers, the binary system. It contains only ones and zeros, but you can easily transform it to our normal numeral system. HOW DO YOU READ THE WATCH? The top-row shows the current hour. The LEDs represent 8, 4, 2 and 1. The bottom-row displays the current minute and the LEDs represent 32, 16, 8, 4, 2, 1. Just add up the glowing numbers and you are done! ABOUT THE WATCH - To save energy, the LEDs only glow after you've pressed the button at the side. The plastic wristband is adjustable between 5.5 inches and 8.2 inches. The watch needs a CR2032 battery, which is included and can easily be exchanged. A PERFECT GIFT - Everyone in IT and science will love this watch, which makes it the perfect geek & nerd present and even the perfect gift for men and women in general. ORIGINAL GETDIGITAL - The watch was exclusively designed by our getDigital designer, which is why you won't find it anywhere else. The design depicts a circuit board whose soldering points are the LEDs that display the time. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it! Covers broken watchband, movement failures, cracked crystal, bezel damage and more. Includes a 1-time refurbishment. No deductibles or hidden fees. Free shipping on all repairs. Fully transferable. Easy claims process online or by phone 24/7. If we can't fix it, we will send you an Amazon e-Card for full replacement value. Coverage begins date of purchase and is inclusive of the manufacturer's warranty. Plan is fully refunded if canceled within 30 days. Plan contract will be emailed from Asurion within 48 hours of purchase. This will not ship with your product.