There were indeed many reasons why the design of the other royal stamps was incomplete - the half sun, half moon and unfinished flower petal ring.
And one of those reasons has a direct connection with its bearer. It signifies that the stamp keeper's life had not yet diminished.
Elder Eckhar knew that the former owner of the watch had died. Therefore, she expected that a flower petal had formed on the stamp, signifying the end of its keeper's end.
But, it should only be one complete petal, right? How come there are two complete petals here?!
"Sofia, even if you are not interested, I will still tell you a tradition that greatly shaped these royal stamps."
"Eckhar, I appreciate the initiative but I think I have learned enough. Let's end this here," Sofia told the elder in a calm yet extremely serious tone.