Nokia's Lumia 928 may be the latest in a long line of solid Windows Phone devices, but its upcoming Lumia 925, code named Catwalk, could be the company's crown jewel. In fact, Nokia is so excited to share the device that it's already teasing its existence ahead of an official announcement, which we're expecting in London on May 14.

Aired during British TV, the short promo gives us a quick glimpse of the device's camera and flash, obviously highlighting what will be the biggest feature. We've heard a number of rumors suggesting Nokia would introduce a Lumia device with an aluminum design, and the commercial definitely hints at that.

The Lumia 925 might be the first aluminum Windows Phone and could be Nokia's answer to the Android-packing HTC One, which also has an aluminum body. Hopefully we'll learn more about the phone tomorrow, when Nokia takes the stage to reveal its next Lumia.