Black dial 176200?

[No SUBctitute]

I am NOT asking whether I should buy the below watch, or whether it is authentic so that I can buy. (Although I would like to source it from an AD or TS someday.)

However, I do have questions about the 26mm Oyster Perpetual 176200:

1) Was it ever made in a black dial per the below ad? (It is currently only made in olive, purple, pink, white, and silver.)

2) The inside of the case back says 2320. What does that refer to? Does Rolex stamp the inside of case back?

https://www.swisswatchexpo.com/watch...FcK3wAod6QQARw

[Alpino]

Originally Posted by No SUBctitute

1) Was it ever made in a black dial per the below ad? (It is currently only made in olive, purple, pink, white, and silver.)

2) The inside of the case back says 2320. What does that refer to? Does Rolex stamp the inside of case back?

1) this dial was available from 2007 to 2015

2) 2320 is the part number of the case back for a 176200