This is a Chinese made watch and the brand is "Shanghai" with reference number 6103. I received it as a gift and after some research I found that the complication is called “carrousel”. The escapement is located on the dial-side. The entire dial rotates in tandem with the minute hand, completing one revolution per hour. The minute hand may have a different location on the dial, depending on when the watch is set. I read that Lange made carousel watches a long time ago and more recently Blancpain has produced some models. From Blancpain website, their carrousel models make one rotation in one minute. The Shanghai model makes one rotation in an hour. Please see some photos here showing the dial rotating. Have a good weekend!