It's looking almost certain that Apple will dish the details on its upcoming wearable this Monday, with invitations and preparations already in place for a special event at the Yerba Buena Center for the Arts in San Francisco. While we already know quite a bit about Apple Watch thanks to the introduction during September's keynote, the tech world has since speculated on some important factors, notably pricing, features and battery life. Now, a new report gives us a ballpark indication of how long the wrist computer will last before running out of juice, and as alluded to a short while ago by CEO Tim Cook, it appears that every wearer will need to get into the habit of overnight charging.

We've all seen battery charging cases for smartphones, now meet Reserve Strap, the interchangeable charging strap for the Apple Watch. Head over the jump to read all about this brilliant contraption.