Men's Retro Sports Watch, Wristwatch Excerpt: Features: Case Diameter: 4.8cm Case Thickness: 1.3cm Band Width: 2.5cm Band Length: 25.00cm Band Material: Leather Adjustable Band I purchased this online, but it's a different color than I ordered and doesn't match what I was expecting, so I'm selling it. Brand new, unused, and unopened. It appears there is no instruction manual. Regarding the functions, I've excerpted them from the product page. The side buttons and gauges appear to be dummies. I just bought it recently. Thank you.