What do the Rolex model alphabets represent?

Model number may have alphabets behind them. Example “116713 LN” , these alphabets represent the colours of the bezel. The common alphabets are LN, LV and LB. Which represents, Lunette Noir and Lunette Verte Lunette Bleu respectively. Lunette=bezelNoir=blackVerte=greenbleu=blue. Some bezel may have 2 colours and are represented as: BLRO (Bleu/Rouge): Blue and red bezels found […]
Difference between Rolex Explorer 2. Model 16570 (on the left, black) and Model 216570 (on the right, white)

16570: 1)40 mm case2)Slimmer case3)smaller hour, minute, and seconds hands4)red GMT hands5) calibre 3185 or 3186 depending on the production year. 216570: 1)42 mm case2)Thicker case3)Larger hour, minute, and seconds hands4)Orange GMT hands and orange text 5) calibre 3187😎