Apparently the Front & Back is an innovative clock with the concept of practicing economy. Unfortunately the clock is a design concept at present.
The clock called Front & Back is designed by The wrong objects. The most unique feature is, that the two slots on the back for holding a pair of batteries have been moved to the clock face as the clock hands. This design should save some stainless steel for the manufacturer. Of course, it also brings the users unique experience of telling time.
Well, perhaps the design concept could turn into the real product because of the wide spread on the Internet.
The Front & Back Clock with Battery Hands Source