hi guys looking for some help please, ive a tudor sub 75090, it has both its original paperwork and a service chitty [from japan], the dial says prince date, but should it read prince oysterdate, ive taken the bracelet off and the numbers check out, but i dont want to open the back, is the prince oysterdate for the 75190 model, which i think is bigger and would the dials be the same size? any help or thoughts appreciated. jim