Nintendo - Mario's Cement Factory - Watch & Game

Nintendo Game & Watch (1980's). Game title: Mario's Cement Factory. Minor scratches on the front. Works 100% and in very good condition. Game A and Game B works. Watch function works. 

The top bucket on each side fills with three lines of cement. Yu must empty them to the bottom bucket, which also takes three lines of cement. Then empty the bottom buckets into the trucks. Mario moves between the platforms via the lifts. The lefthand lifts moves down with the righthand lifts moving up. If Mario misses a lift, you loose a life. If the cement buckets are filled with three lines, the fourth line falls on the truck drivers head and you loose a life.