Amazon.com: Timex Unisex Weekender 38mm Watch – Silver-Tone 。*Product Dimensions:1.57 x 3.94 x 2.36 inches; 1.6 ounces *Item model number:TW2R63100 *Department:unisex-adult *Batteries:1 Lithium Metal batteries required. (included) *Date First Available:August 18, 2017 *Manufacturer:Timex *ASIN:B071KWGY4P *Best Sellers Rank:#4 in Men\'s Wrist Watches *Customer Reviews:4.5 4.5 out of 5 stars *The Weekender collection is all about versatility. Easily switch it up with interchangeable slip-thru and quick-release straps. *Timex made their traditional two-piece strap easy to change with quick-release spring bars… no tools required! *Switch it up with interchangeable slip-thru fabric and leather straps. The easy-to-change slip-thru straps allow you to quickly change your strap to match any look for endless options. *Timex created revolutionary Indiglo backlight technology, changing how the world told time in the dark. *Discover even more ways to wear your watch your way. Choose from three different Weekender case sizes—the standard 38mm case, the larger 40mm case—available in chrono—or the oversized 43mm case. product dimensions : 1.57 x 3.94 x 2.36 inches; 1.6 ounces item model number : TW2R63100 department : unisex-adult batteries : 1 Lithium Metal batteries required. (included) manufacturer : Timex