A characteristic, or a number of characteristics, that we can identify as constant, recurring, or coherent. In art, the sum of such characteristics associated with a particular artist, group, or culture, or with an artist work at a specific time.

style            

Explanation:

In simple words, Style can simply be defined as the way the creator represents his or her topic as well as how the creator communicates his or her view. Those features that identify the illustration, like how the creator  uses shape, texture, and structure, to mention only a handful, define style.    

       Another significant aspect in assessing a concept's style is to analyse how the artist approaches the material, bearing in mind the process or methodology used by the artist. The ideology or guiding force underneath the sculpture is an important element of the art forms.                            

the sculpture i am pretty sure you are talking about is the statue b. the david statue now lives in the galleria dell'accademia, florence, italy. it was made by ‎michelangelo.

the longest time is 123 years