It's possible, but the operating life would be pretty short.

Okay, I don't care how long the play time would be, if i cared, i would just include some internal batteries, I just want to say it is the smallest. I don't know how big/small a 1.5 inch screen is, but i can change the size if needed.

And gamax92, Actually no, not going for a higher mAh rating, as a 9 volt only has about 200-400 (im not completely certain) as alkaline AA's have about 2500 mAh a piece. So, AA's would be a better choice, and if not, i can choose smaller AAA's and have more mAh's than a 9 volt.

Edit: Changed 4009 to 400

is the screen wide screen i might use it for my ggmaecube porable

no, but go to computegeeks.com and they might have some.

Didnt Know that. Thanks.
This watch is 1.5 inches.

By The Way.
AAA - 1150mAh
AA -- 2850mAh
D --- 18000mAh
9v -- 595mAh